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Author SHA1 Message Date
AdilZouitine ab94626b92 fix normalization for dtype 2025-08-03 18:07:08 +02:00
65 changed files with 220 additions and 6445 deletions
+1 -1
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@@ -30,7 +30,7 @@ pytest -sx tests/test_stuff.py::test_something
```
```bash
lerobot-train --some.option=true
python -m lerobot.scripts.train --some.option=true
```
## SECTION TO REMOVE BEFORE SUBMITTING YOUR PR
+2 -2
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@@ -29,8 +29,8 @@ on:
env:
UV_VERSION: "0.8.0"
PYTHON_VERSION: "3.10"
DOCKER_IMAGE_NAME_CPU: huggingface/lerobot-cpu:latest
DOCKER_IMAGE_NAME_GPU: huggingface/lerobot-gpu:latest
DOCKER_IMAGE_NAME_CPU: huggingface/lerobot-gpu:latest
DOCKER_IMAGE_NAME_GPU: huggingface/lerobot-cpu:latest
# Ensures that only the latest commit is built, canceling older runs.
concurrency:
+9 -9
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@@ -44,7 +44,7 @@ test-end-to-end:
${MAKE} DEVICE=$(DEVICE) test-smolvla-ete-eval
test-act-ete-train:
lerobot-train \
python -m lerobot.scripts.train \
--policy.type=act \
--policy.dim_model=64 \
--policy.n_action_steps=20 \
@@ -68,12 +68,12 @@ test-act-ete-train:
--output_dir=tests/outputs/act/
test-act-ete-train-resume:
lerobot-train \
python -m lerobot.scripts.train \
--config_path=tests/outputs/act/checkpoints/000002/pretrained_model/train_config.json \
--resume=true
test-act-ete-eval:
lerobot-eval \
python -m lerobot.scripts.eval \
--policy.path=tests/outputs/act/checkpoints/000004/pretrained_model \
--policy.device=$(DEVICE) \
--env.type=aloha \
@@ -82,7 +82,7 @@ test-act-ete-eval:
--eval.batch_size=1
test-diffusion-ete-train:
lerobot-train \
python -m lerobot.scripts.train \
--policy.type=diffusion \
--policy.down_dims='[64,128,256]' \
--policy.diffusion_step_embed_dim=32 \
@@ -106,7 +106,7 @@ test-diffusion-ete-train:
--output_dir=tests/outputs/diffusion/
test-diffusion-ete-eval:
lerobot-eval \
python -m lerobot.scripts.eval \
--policy.path=tests/outputs/diffusion/checkpoints/000002/pretrained_model \
--policy.device=$(DEVICE) \
--env.type=pusht \
@@ -115,7 +115,7 @@ test-diffusion-ete-eval:
--eval.batch_size=1
test-tdmpc-ete-train:
lerobot-train \
python -m lerobot.scripts.train \
--policy.type=tdmpc \
--policy.device=$(DEVICE) \
--policy.push_to_hub=false \
@@ -137,7 +137,7 @@ test-tdmpc-ete-train:
--output_dir=tests/outputs/tdmpc/
test-tdmpc-ete-eval:
lerobot-eval \
python -m lerobot.scripts.eval \
--policy.path=tests/outputs/tdmpc/checkpoints/000002/pretrained_model \
--policy.device=$(DEVICE) \
--env.type=xarm \
@@ -148,7 +148,7 @@ test-tdmpc-ete-eval:
test-smolvla-ete-train:
lerobot-train \
python -m lerobot.scripts.train \
--policy.type=smolvla \
--policy.n_action_steps=20 \
--policy.chunk_size=20 \
@@ -171,7 +171,7 @@ test-smolvla-ete-train:
--output_dir=tests/outputs/smolvla/
test-smolvla-ete-eval:
lerobot-eval \
python -m lerobot.scripts.eval \
--policy.path=tests/outputs/smolvla/checkpoints/000004/pretrained_model \
--policy.device=$(DEVICE) \
--env.type=aloha \
+9 -51
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@@ -6,7 +6,7 @@
<div align="center">
[![Tests](https://github.com/huggingface/lerobot/actions/workflows/nightly.yml/badge.svg?branch=main)](https://github.com/huggingface/lerobot/actions/workflows/nightly.yml?query=branch%3Amain)
[![Tests](https://github.com/huggingface/lerobot/actions/workflows/nightly.yml/badge.svg?branch=main)](https://github.com/huggingface/lerobot/actions/workflows/nighty.yml?query=branch%3Amain)
[![Python versions](https://img.shields.io/pypi/pyversions/lerobot)](https://www.python.org/downloads/)
[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://github.com/huggingface/lerobot/blob/main/LICENSE)
[![Status](https://img.shields.io/pypi/status/lerobot)](https://pypi.org/project/lerobot/)
@@ -101,9 +101,6 @@
## Installation
LeRobot works with Python 3.10+ and PyTorch 2.2+.
### Environment Setup
Create a virtual environment with Python 3.10 and activate it, e.g. with [`miniconda`](https://docs.anaconda.com/free/miniconda/index.html):
```bash
@@ -127,21 +124,10 @@ conda install ffmpeg -c conda-forge
>
> - _[On Linux only]_ Install [ffmpeg build dependencies](https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu#GettheDependencies) and [compile ffmpeg from source with libsvtav1](https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu#libsvtav1), and make sure you use the corresponding ffmpeg binary to your install with `which ffmpeg`.
### Install LeRobot 🤗
#### From Source
First, clone the repository and navigate into the directory:
Install 🤗 LeRobot:
```bash
git clone https://github.com/huggingface/lerobot.git
cd lerobot
```
Then, install the library in editable mode. This is useful if you plan to contribute to the code.
```bash
pip install -e .
pip install lerobot
```
> **NOTE:** If you encounter build errors, you may need to install additional dependencies (`cmake`, `build-essential`, and `ffmpeg libs`). On Linux, run:
@@ -159,34 +145,6 @@ For instance, to install 🤗 LeRobot with aloha and pusht, use:
pip install -e ".[aloha, pusht]"
```
### Installation from PyPI
**Core Library:**
Install the base package with:
```bash
pip install lerobot
```
_This installs only the default dependencies._
**Extra Features:**
To install additional functionality, use one of the following:
```bash
pip install 'lerobot[all]' # All available features
pip install 'lerobot[aloha,pusht]' # Specific features (Aloha & Pusht)
pip install 'lerobot[feetech]' # Feetech motor support
```
_Replace `[...]` with your desired features._
**Available Tags:**
For a full list of optional dependencies, see:
https://pypi.org/project/lerobot/
### Weights & Biases
To use [Weights and Biases](https://docs.wandb.ai/quickstart) for experiment tracking, log in with
```bash
@@ -276,7 +234,7 @@ Check out [example 2](https://github.com/huggingface/lerobot/blob/main/examples/
We also provide a more capable script to parallelize the evaluation over multiple environments during the same rollout. Here is an example with a pretrained model hosted on [lerobot/diffusion_pusht](https://huggingface.co/lerobot/diffusion_pusht):
```bash
lerobot-eval \
python -m lerobot.scripts.eval \
--policy.path=lerobot/diffusion_pusht \
--env.type=pusht \
--eval.batch_size=10 \
@@ -288,10 +246,10 @@ lerobot-eval \
Note: After training your own policy, you can re-evaluate the checkpoints with:
```bash
lerobot-eval --policy.path={OUTPUT_DIR}/checkpoints/last/pretrained_model
python -m lerobot.scripts.eval --policy.path={OUTPUT_DIR}/checkpoints/last/pretrained_model
```
See `lerobot-eval --help` for more instructions.
See `python -m lerobot.scripts.eval --help` for more instructions.
### Train your own policy
@@ -303,7 +261,7 @@ A link to the wandb logs for the run will also show up in yellow in your termina
\<img src="https://raw.githubusercontent.com/huggingface/lerobot/main/media/wandb.png" alt="WandB logs example"\>
Note: For efficiency, during training every checkpoint is evaluated on a low number of episodes. You may use `--eval.n_episodes=500` to evaluate on more episodes than the default. Or, after training, you may want to re-evaluate your best checkpoints on more episodes or change the evaluation settings. See `lerobot-eval --help` for more instructions.
Note: For efficiency, during training every checkpoint is evaluated on a low number of episodes. You may use `--eval.n_episodes=500` to evaluate on more episodes than the default. Or, after training, you may want to re-evaluate your best checkpoints on more episodes or change the evaluation settings. See `python -m lerobot.scripts.eval --help` for more instructions.
#### Reproduce state-of-the-art (SOTA)
@@ -311,7 +269,7 @@ We provide some pretrained policies on our [hub page](https://huggingface.co/ler
You can reproduce their training by loading the config from their run. Simply running:
```bash
lerobot-train --config_path=lerobot/diffusion_pusht
python -m lerobot.scripts.train --config_path=lerobot/diffusion_pusht
```
reproduces SOTA results for Diffusion Policy on the PushT task.
@@ -353,7 +311,7 @@ If you want, you can cite this work with:
```bibtex
@misc{cadene2024lerobot,
author = {Cadene, Remi and Alibert, Simon and Soare, Alexander and Gallouedec, Quentin and Zouitine, Adil and Palma, Steven and Kooijmans, Pepijn and Aractingi, Michel and Shukor, Mustafa and Aubakirova, Dana and Russi, Martino and Capuano, Francesco and Pascal, Caroline and Choghari, Jade and Moss, Jess and Wolf, Thomas},
author = {Cadene, Remi and Alibert, Simon and Soare, Alexander and Gallouedec, Quentin and Zouitine, Adil and Palma, Steven and Kooijmans, Pepijn and Aractingi, Michel and Shukor, Mustafa and Aubakirova, Dana and Russi, Martino and Capuano, Francesco and Pascale, Caroline and Choghari, Jade and Moss, Jess and Wolf, Thomas},
title = {LeRobot: State-of-the-art Machine Learning for Real-World Robotics in Pytorch},
howpublished = "\url{https://github.com/huggingface/lerobot}",
year = {2024}
-11
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@@ -1,11 +0,0 @@
compute_environment: LOCAL_MACHINE
debug: false
distributed_type: NO
downcast_bf16: 'no'
enable_cpu_affinity: false
machine_rank: 0
main_training_function: main
mixed_precision: 'no'
num_machines: 1
num_processes: 1
use_cpu: false
-18
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@@ -1,18 +0,0 @@
compute_environment: LOCAL_MACHINE
debug: false
distributed_type: MULTI_GPU
downcast_bf16: 'no'
enable_cpu_affinity: false
gpu_ids: all
machine_rank: 0
main_training_function: main
mixed_precision: 'no'
num_machines: 1
num_processes: 2
rdzv_backend: static
same_network: true
tpu_env: []
tpu_use_cluster: false
tpu_use_sudo: false
use_cpu: false
dynamo_backend: "no"
+1 -1
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@@ -29,7 +29,7 @@ ENV DEBIAN_FRONTEND=noninteractive \
# Install system dependencies and uv (as root)
RUN apt-get update && apt-get install -y --no-install-recommends \
build-essential git curl libglib2.0-0 libegl1-mesa-dev ffmpeg \
build-essential git curl libglib2.0-0 libegl1-mesa ffmpeg \
libusb-1.0-0-dev speech-dispatcher libgeos-dev portaudio19-dev \
&& curl -LsSf https://astral.sh/uv/install.sh | sh \
&& mv /root/.local/bin/uv /usr/local/bin/uv \
-2
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@@ -39,8 +39,6 @@
- sections:
- local: notebooks
title: Notebooks
- local: feetech
title: Updating Feetech Firmware
title: "Resources"
- sections:
- local: contributing
+1 -1
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@@ -9,7 +9,7 @@ To instantiate a camera, you need a camera identifier. This identifier might cha
To find the camera indices of the cameras plugged into your system, run the following script:
```bash
lerobot-find-cameras opencv # or realsense for Intel Realsense cameras
python -m lerobot.find_cameras opencv # or realsense for Intel Realsense cameras
```
The output will look something like this if you have two cameras connected:
-71
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@@ -1,71 +0,0 @@
# Feetech Motor Firmware Update
This tutorial guides you through updating the firmware of Feetech motors using the official Feetech software.
## Prerequisites
- Windows computer (Feetech software is only available for Windows)
- Feetech motor control board
- USB cable to connect the control board to your computer
- Feetech motors connected to the control board
## Step 1: Download Feetech Software
1. Visit the official Feetech software download page: [https://www.feetechrc.com/software.html](https://www.feetechrc.com/software.html)
2. Download the latest version of the Feetech debugging software (FD)
3. Install the software on your Windows computer
## Step 2: Hardware Setup
1. Connect your Feetech motors to the motor control board
2. Connect the motor control board to your Windows computer via USB cable
3. Ensure power is supplied to the motors
## Step 3: Configure Connection
1. Launch the Feetech debugging software
2. Select the correct COM port from the port dropdown menu
- If unsure which port to use, check Windows Device Manager under "Ports (COM & LPT)"
3. Set the appropriate baud rate (typically 1000000 for most Feetech motors)
4. Click "Open" to establish communication with the control board
## Step 4: Scan for Motors
1. Once connected, click the "Search" button to detect all connected motors
2. The software will automatically discover and list all motors on the bus
3. Each motor will appear with its ID number
## Step 5: Update Firmware
For each motor you want to update:
1. **Select the motor** from the list by clicking on it
2. **Click on Upgrade tab**:
3. **Click on Online button**:
- If an potential firmware update is found, it will be displayed in the box
4. **Click on Upgrade button**:
- The update progress will be displayed
## Step 6: Verify Update
1. After the update completes, the software should automatically refresh the motor information
2. Verify that the firmware version has been updated to the expected version
## Important Notes
⚠️ **Warning**: Do not disconnect power or USB during firmware updates, it will potentially brick the motor.
## Bonus: Motor Debugging on Linux/macOS
For debugging purposes only, you can use the open-source Feetech Debug Tool:
- **Repository**: [FT_SCServo_Debug_Qt](https://github.com/CarolinePascal/FT_SCServo_Debug_Qt/tree/fix/port-search-timer)
### Installation Instructions
Follow the instructions in the repository to install the tool, for Ubuntu you can directly install it, for MacOS you need to build it from source.
**Limitations:**
- This tool is for debugging and parameter adjustment only
- Firmware updates must still be done on Windows with official Feetech software
+2 -2
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@@ -412,7 +412,7 @@ Example configuration for training the [reward classifier](https://huggingface.c
To train the classifier, use the `train.py` script with your configuration:
```bash
lerobot-train --config_path path/to/reward_classifier_train_config.json
python -m lerobot.scripts.train --config_path path/to/reward_classifier_train_config.json
```
**Deploying and Testing the Model**
@@ -458,7 +458,7 @@ The reward classifier will automatically provide rewards based on the visual inp
3. **Train the classifier**:
```bash
lerobot-train --config_path src/lerobot/configs/reward_classifier_train_config.json
python -m lerobot.scripts.train --config_path src/lerobot/configs/reward_classifier_train_config.json
```
4. **Test the classifier**:
+11 -11
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@@ -19,7 +19,7 @@ pip install -e ".[hopejr]"
Before starting calibration and operation, you need to identify the USB ports for each HopeJR component. Run this script to find the USB ports for the arm, hand, glove, and exoskeleton:
```bash
lerobot-find-port
python -m lerobot.find_port
```
This will display the available USB ports and their associated devices. Make note of the port paths (e.g., `/dev/tty.usbmodem58760433331`, `/dev/tty.usbmodem11301`) as you'll need to specify them in the `--robot.port` and `--teleop.port` parameters when recording data, replaying episodes, or running teleoperation scripts.
@@ -31,7 +31,7 @@ Before performing teleoperation, HopeJR's limbs need to be calibrated. Calibrati
### 1.1 Calibrate Robot Hand
```bash
lerobot-calibrate \
python -m lerobot.calibrate \
--robot.type=hope_jr_hand \
--robot.port=/dev/tty.usbmodem58760432281 \
--robot.id=blue \
@@ -81,7 +81,7 @@ Once you have set the appropriate boundaries for all joints, click "Save" to sav
### 1.2 Calibrate Teleoperator Glove
```bash
lerobot-calibrate \
python -m lerobot.calibrate \
--teleop.type=homunculus_glove \
--teleop.port=/dev/tty.usbmodem11201 \
--teleop.id=red \
@@ -120,7 +120,7 @@ Once calibration is complete, the system will save the calibration to `/Users/yo
### 1.3 Calibrate Robot Arm
```bash
lerobot-calibrate \
python -m lerobot.calibrate \
--robot.type=hope_jr_arm \
--robot.port=/dev/tty.usbserial-1110 \
--robot.id=white
@@ -146,7 +146,7 @@ Use the calibration interface to set the range boundaries for each joint. Move e
### 1.4 Calibrate Teleoperator Exoskeleton
```bash
lerobot-calibrate \
python -m lerobot.calibrate \
--teleop.type=homunculus_arm \
--teleop.port=/dev/tty.usbmodem11201 \
--teleop.id=black
@@ -178,7 +178,7 @@ Due to global variable conflicts in the Feetech middleware, teleoperation for ar
### Hand
```bash
lerobot-teleoperate \
python -m lerobot.teleoperate \
--robot.type=hope_jr_hand \
--robot.port=/dev/tty.usbmodem58760432281 \
--robot.id=blue \
@@ -194,7 +194,7 @@ lerobot-teleoperate \
### Arm
```bash
lerobot-teleoperate \
python -m lerobot.teleoperate \
--robot.type=hope_jr_arm \
--robot.port=/dev/tty.usbserial-1110 \
--robot.id=white \
@@ -214,7 +214,7 @@ Record, Replay and Train with Hope-JR is still experimental.
This step records the dataset, which can be seen as an example [here](https://huggingface.co/datasets/nepyope/hand_record_test_with_video_data/settings).
```bash
lerobot-record \
python -m lerobot.record \
--robot.type=hope_jr_hand \
--robot.port=/dev/tty.usbmodem58760432281 \
--robot.id=right \
@@ -236,7 +236,7 @@ lerobot-record \
### Replay
```bash
lerobot-replay \
python -m lerobot.replay \
--robot.type=hope_jr_hand \
--robot.port=/dev/tty.usbmodem58760432281 \
--robot.id=right \
@@ -248,7 +248,7 @@ lerobot-replay \
### Train
```bash
lerobot-train \
python -m lerobot.scripts.train \
--dataset.repo_id=nepyope/hand_record_test_with_video_data \
--policy.type=act \
--output_dir=outputs/train/hopejr_hand \
@@ -263,7 +263,7 @@ lerobot-train \
This training run can be viewed as an example [here](https://wandb.ai/tino/lerobot/runs/rp0k8zvw?nw=nwusertino).
```bash
lerobot-record \
python -m lerobot.record \
--robot.type=hope_jr_hand \
--robot.port=/dev/tty.usbmodem58760432281 \
--robot.id=right \
+10 -10
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@@ -45,7 +45,7 @@ Note that the `id` associated with a robot is used to store the calibration file
<hfoptions id="teleoperate_so101">
<hfoption id="Command">
```bash
lerobot-teleoperate \
python -m lerobot.teleoperate \
--robot.type=so101_follower \
--robot.port=/dev/tty.usbmodem58760431541 \
--robot.id=my_awesome_follower_arm \
@@ -101,7 +101,7 @@ With `rerun`, you can teleoperate again while simultaneously visualizing the cam
<hfoptions id="teleoperate_koch_camera">
<hfoption id="Command">
```bash
lerobot-teleoperate \
python -m lerobot.teleoperate \
--robot.type=koch_follower \
--robot.port=/dev/tty.usbmodem58760431541 \
--robot.id=my_awesome_follower_arm \
@@ -174,7 +174,7 @@ Now you can record a dataset. To record 5 episodes and upload your dataset to th
<hfoptions id="record">
<hfoption id="Command">
```bash
lerobot-record \
python -m lerobot.record \
--robot.type=so101_follower \
--robot.port=/dev/tty.usbmodem585A0076841 \
--robot.id=my_awesome_follower_arm \
@@ -294,7 +294,7 @@ dataset.push_to_hub()
#### Dataset upload
Locally, your dataset is stored in this folder: `~/.cache/huggingface/lerobot/{repo-id}`. At the end of data recording, your dataset will be uploaded on your Hugging Face page (e.g. `https://huggingface.co/datasets/${HF_USER}/so101_test`) that you can obtain by running:
Locally, your dataset is stored in this folder: `~/.cache/huggingface/lerobot/{repo-id}`. At the end of data recording, your dataset will be uploaded on your Hugging Face page (e.g. https://huggingface.co/datasets/cadene/so101_test) that you can obtain by running:
```bash
echo https://huggingface.co/datasets/${HF_USER}/so101_test
@@ -376,7 +376,7 @@ You can replay the first episode on your robot with either the command below or
<hfoptions id="replay">
<hfoption id="Command">
```bash
lerobot-replay \
python -m lerobot.replay \
--robot.type=so101_follower \
--robot.port=/dev/tty.usbmodem58760431541 \
--robot.id=my_awesome_follower_arm \
@@ -428,10 +428,10 @@ Your robot should replicate movements similar to those you recorded. For example
## Train a policy
To train a policy to control your robot, use the [`lerobot-train`](https://github.com/huggingface/lerobot/blob/main/src/lerobot/scripts/train.py) script. A few arguments are required. Here is an example command:
To train a policy to control your robot, use the [`python -m lerobot.scripts.train`](../src/lerobot/scripts/train.py) script. A few arguments are required. Here is an example command:
```bash
lerobot-train \
python -m lerobot.scripts.train \
--dataset.repo_id=${HF_USER}/so101_test \
--policy.type=act \
--output_dir=outputs/train/act_so101_test \
@@ -444,7 +444,7 @@ lerobot-train \
Let's explain the command:
1. We provided the dataset as argument with `--dataset.repo_id=${HF_USER}/so101_test`.
2. We provided the policy with `policy.type=act`. This loads configurations from [`configuration_act.py`](https://github.com/huggingface/lerobot/blob/main/src/lerobot/policies/act/configuration_act.py). Importantly, this policy will automatically adapt to the number of motor states, motor actions and cameras of your robot (e.g. `laptop` and `phone`) which have been saved in your dataset.
2. We provided the policy with `policy.type=act`. This loads configurations from [`configuration_act.py`](../src/lerobot/policies/act/configuration_act.py). Importantly, this policy will automatically adapt to the number of motor states, motor actions and cameras of your robot (e.g. `laptop` and `phone`) which have been saved in your dataset.
3. We provided `policy.device=cuda` since we are training on a Nvidia GPU, but you could use `policy.device=mps` to train on Apple silicon.
4. We provided `wandb.enable=true` to use [Weights and Biases](https://docs.wandb.ai/quickstart) for visualizing training plots. This is optional but if you use it, make sure you are logged in by running `wandb login`.
@@ -453,7 +453,7 @@ Training should take several hours. You will find checkpoints in `outputs/train/
To resume training from a checkpoint, below is an example command to resume from `last` checkpoint of the `act_so101_test` policy:
```bash
lerobot-train \
python -m lerobot.scripts.train \
--config_path=outputs/train/act_so101_test/checkpoints/last/pretrained_model/train_config.json \
--resume=true
```
@@ -490,7 +490,7 @@ You can use the `record` script from [`lerobot/record.py`](https://github.com/hu
<hfoptions id="eval">
<hfoption id="Command">
```bash
lerobot-record \
python -m lerobot.record \
--robot.type=so100_follower \
--robot.port=/dev/ttyACM1 \
--robot.cameras="{ up: {type: opencv, index_or_path: /dev/video10, width: 640, height: 480, fps: 30}, side: {type: intelrealsense, serial_number_or_name: 233522074606, width: 640, height: 480, fps: 30}}" \
+3 -3
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@@ -96,10 +96,10 @@ If you uploaded your dataset to the hub you can [visualize your dataset online](
## Train a policy
To train a policy to control your robot, use the [`lerobot-train`](https://github.com/huggingface/lerobot/blob/main/src/lerobot/scripts/train.py) script. A few arguments are required. Here is an example command:
To train a policy to control your robot, use the [`python -m lerobot.scripts.train`](../src/lerobot/scripts/train.py) script. A few arguments are required. Here is an example command:
```bash
lerobot-train \
python -m lerobot.scripts.train \
--dataset.repo_id=${HF_USER}/il_gym \
--policy.type=act \
--output_dir=outputs/train/il_sim_test \
@@ -111,7 +111,7 @@ lerobot-train \
Let's explain the command:
1. We provided the dataset as argument with `--dataset.repo_id=${HF_USER}/il_gym`.
2. We provided the policy with `policy.type=act`. This loads configurations from [`configuration_act.py`](https://github.com/huggingface/lerobot/blob/main/src/lerobot/policies/act/configuration_act.py). Importantly, this policy will automatically adapt to the number of motor states, motor actions and cameras of your robot (e.g. `laptop` and `phone`) which have been saved in your dataset.
2. We provided the policy with `policy.type=act`. This loads configurations from [`configuration_act.py`](../src/lerobot/policies/act/configuration_act.py). Importantly, this policy will automatically adapt to the number of motor states, motor actions and cameras of your robot (e.g. `laptop` and `phone`) which have been saved in your dataset.
3. We provided `policy.device=cuda` since we are training on a Nvidia GPU, but you could use `policy.device=mps` to train on Apple silicon.
4. We provided `wandb.enable=true` to use [Weights and Biases](https://docs.wandb.ai/quickstart) for visualizing training plots. This is optional but if you use it, make sure you are logged in by running `wandb login`.
+11 -39
View File
@@ -1,6 +1,15 @@
# Installation
## Environment Setup
## Install LeRobot
Currently only available from source.
Download our source code:
```bash
git clone https://github.com/huggingface/lerobot.git
cd lerobot
```
Create a virtual environment with Python 3.10, using [`Miniconda`](https://docs.anaconda.com/miniconda/install/#quick-command-line-install)
@@ -31,49 +40,12 @@ conda install ffmpeg -c conda-forge
>
> - _[On Linux only]_ If you want to bring your own ffmpeg: Install [ffmpeg build dependencies](https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu#GettheDependencies) and [compile ffmpeg from source with libsvtav1](https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu#libsvtav1), and make sure you use the corresponding ffmpeg binary to your install with `which ffmpeg`.
## Install LeRobot 🤗
### From Source
First, clone the repository and navigate into the directory:
```bash
git clone https://github.com/huggingface/lerobot.git
cd lerobot
```
Then, install the library in editable mode. This is useful if you plan to contribute to the code.
Install 🤗 LeRobot:
```bash
pip install -e .
```
### Installation from PyPI
**Core Library:**
Install the base package with:
```bash
pip install lerobot
```
_This installs only the default dependencies._
**Extra Features:**
To install additional functionality, use one of the following:
```bash
pip install 'lerobot[all]' # All available features
pip install 'lerobot[aloha,pusht]' # Specific features (Aloha & Pusht)
pip install 'lerobot[feetech]' # Feetech motor support
```
_Replace `[...]` with your desired features._
**Available Tags:**
For a full list of optional dependencies, see:
https://pypi.org/project/lerobot/
### Troubleshooting
If you encounter build errors, you may need to install additional dependencies: `cmake`, `build-essential`, and `ffmpeg libs`.
+5 -5
View File
@@ -31,7 +31,7 @@ pip install -e ".[dynamixel]"
To find the port for each bus servo adapter, run this script:
```bash
lerobot-find-port
python -m lerobot.find_port
```
<hfoptions id="example">
@@ -98,7 +98,7 @@ For a visual reference on how to set the motor ids please refer to [this video](
<hfoption id="Command">
```bash
lerobot-setup-motors \
python -m lerobot.setup_motors \
--robot.type=koch_follower \
--robot.port=/dev/tty.usbmodem575E0031751 # <- paste here the port found at previous step
```
@@ -174,7 +174,7 @@ Do the same steps for the leader arm but modify the command or script accordingl
<hfoption id="Command">
```bash
lerobot-setup-motors \
python -m lerobot.setup_motors \
--teleop.type=koch_leader \
--teleop.port=/dev/tty.usbmodem575E0031751 \ # <- paste here the port found at previous step
```
@@ -211,7 +211,7 @@ Run the following command or API example to calibrate the follower arm:
<hfoption id="Command">
```bash
lerobot-calibrate \
python -m lerobot.calibrate \
--robot.type=koch_follower \
--robot.port=/dev/tty.usbmodem58760431551 \ # <- The port of your robot
--robot.id=my_awesome_follower_arm # <- Give the robot a unique name
@@ -249,7 +249,7 @@ Do the same steps to calibrate the leader arm, run the following command or API
<hfoption id="Command">
```bash
lerobot-calibrate \
python -m lerobot.calibrate \
--teleop.type=koch_leader \
--teleop.port=/dev/tty.usbmodem58760431551 \ # <- The port of your robot
--teleop.id=my_awesome_leader_arm # <- Give the robot a unique name
+4 -4
View File
@@ -60,7 +60,7 @@ First, we will assemble the two SO100/SO101 arms. One to attach to the mobile ba
To find the port for each bus servo adapter, run this script:
```bash
lerobot-find-port
python -m lerobot.find_port
```
<hfoptions id="example">
@@ -116,7 +116,7 @@ The instructions for configuring the motors can be found in the SO101 [docs](./s
You can run this command to setup motors for LeKiwi. It will first setup the motors for arm (id 6..1) and then setup motors for wheels (9,8,7)
```bash
lerobot-setup-motors \
python -m lerobot.setup_motors \
--robot.type=lekiwi \
--robot.port=/dev/tty.usbmodem58760431551 # <- paste here the port found at previous step
```
@@ -174,7 +174,7 @@ The calibration process is very important because it allows a neural network tra
Make sure the arm is connected to the Raspberry Pi and run this script or API example (on the Raspberry Pi via SSH) to launch calibration of the follower arm:
```bash
lerobot-calibrate \
python -m lerobot.calibrate \
--robot.type=lekiwi \
--robot.id=my_awesome_kiwi # <- Give the robot a unique name
```
@@ -193,7 +193,7 @@ Then, to calibrate the leader arm (which is attached to the laptop/pc). Run the
<hfoption id="Command">
```bash
lerobot-calibrate \
python -m lerobot.calibrate \
--teleop.type=so100_leader \
--teleop.port=/dev/tty.usbmodem58760431551 \ # <- The port of your robot
--teleop.id=my_awesome_leader_arm # <- Give the robot a unique name
+3 -3
View File
@@ -54,7 +54,7 @@ If you don't have a gpu device, you can train using our notebook on [![Google Co
Pass your dataset to the training script using `--dataset.repo_id`. If you want to test your installation, run the following command where we use one of the datasets we collected for the [SmolVLA Paper](https://huggingface.co/papers/2506.01844).
```bash
cd lerobot && lerobot-train \
cd lerobot && python -m lerobot.scripts.train \
--policy.path=lerobot/smolvla_base \
--dataset.repo_id=${HF_USER}/mydataset \
--batch_size=64 \
@@ -73,7 +73,7 @@ cd lerobot && lerobot-train \
Fine-tuning is an art. For a complete overview of the options for finetuning, run
```bash
lerobot-train --help
python -m lerobot.scripts.train --help
```
<p align="center">
@@ -97,7 +97,7 @@ Similarly for when recording an episode, it is recommended that you are logged i
Once you are logged in, you can run inference in your setup by doing:
```bash
lerobot-record \
python -m lerobot.record \
--robot.type=so101_follower \
--robot.port=/dev/ttyACM0 \ # <- Use your port
--robot.id=my_blue_follower_arm \ # <- Use your robot id
+5 -5
View File
@@ -26,7 +26,7 @@ Unlike the SO-101, the motor connectors are not easily accessible once the arm i
To find the port for each bus servo adapter, run this script:
```bash
lerobot-find-port
python -m lerobot.find_port
```
<hfoptions id="example">
@@ -93,7 +93,7 @@ For a visual reference on how to set the motor ids please refer to [this video](
<hfoption id="Command">
```bash
lerobot-setup-motors \
python -m lerobot.setup_motors \
--robot.type=so100_follower \
--robot.port=/dev/tty.usbmodem585A0076841 # <- paste here the port found at previous step
```
@@ -168,7 +168,7 @@ Do the same steps for the leader arm.
<hfoptions id="setup_motors">
<hfoption id="Command">
```bash
lerobot-setup-motors \
python -m lerobot.setup_motors \
--teleop.type=so100_leader \
--teleop.port=/dev/tty.usbmodem575E0031751 # <- paste here the port found at previous step
```
@@ -568,7 +568,7 @@ Run the following command or API example to calibrate the follower arm:
<hfoption id="Command">
```bash
lerobot-calibrate \
python -m lerobot.calibrate \
--robot.type=so100_follower \
--robot.port=/dev/tty.usbmodem58760431551 \ # <- The port of your robot
--robot.id=my_awesome_follower_arm # <- Give the robot a unique name
@@ -606,7 +606,7 @@ Do the same steps to calibrate the leader arm, run the following command or API
<hfoption id="Command">
```bash
lerobot-calibrate \
python -m lerobot.calibrate \
--teleop.type=so100_leader \
--teleop.port=/dev/tty.usbmodem58760431551 \ # <- The port of your robot
--teleop.id=my_awesome_leader_arm # <- Give the robot a unique name
+5 -5
View File
@@ -162,7 +162,7 @@ It is advisable to install one 3-pin cable in the motor after placing them befor
To find the port for each bus servo adapter, connect MotorBus to your computer via USB and power. Run the following script and disconnect the MotorBus when prompted:
```bash
lerobot-find-port
python -m lerobot.find_port
```
<hfoptions id="example">
@@ -240,7 +240,7 @@ Connect the usb cable from your computer and the power supply to the follower ar
<hfoption id="Command">
```bash
lerobot-setup-motors \
python -m lerobot.setup_motors \
--robot.type=so101_follower \
--robot.port=/dev/tty.usbmodem585A0076841 # <- paste here the port found at previous step
```
@@ -316,7 +316,7 @@ Do the same steps for the leader arm.
<hfoption id="Command">
```bash
lerobot-setup-motors \
python -m lerobot.setup_motors \
--teleop.type=so101_leader \
--teleop.port=/dev/tty.usbmodem575E0031751 # <- paste here the port found at previous step
```
@@ -353,7 +353,7 @@ Run the following command or API example to calibrate the follower arm:
<hfoption id="Command">
```bash
lerobot-calibrate \
python -m lerobot.calibrate \
--robot.type=so101_follower \
--robot.port=/dev/tty.usbmodem58760431551 \ # <- The port of your robot
--robot.id=my_awesome_follower_arm # <- Give the robot a unique name
@@ -402,7 +402,7 @@ Do the same steps to calibrate the leader arm, run the following command or API
<hfoption id="Command">
```bash
lerobot-calibrate \
python -m lerobot.calibrate \
--teleop.type=so101_leader \
--teleop.port=/dev/tty.usbmodem58760431551 \ # <- The port of your robot
--teleop.id=my_awesome_leader_arm # <- Give the robot a unique name
+14 -14
View File
@@ -62,7 +62,7 @@ By default, every field takes its default value specified in the dataclass. If a
Let's say that we want to train [Diffusion Policy](../src/lerobot/policies/diffusion) on the [pusht](https://huggingface.co/datasets/lerobot/pusht) dataset, using the [gym_pusht](https://github.com/huggingface/gym-pusht) environment for evaluation. The command to do so would look like this:
```bash
lerobot-train \
python -m lerobot.scripts.train \
--dataset.repo_id=lerobot/pusht \
--policy.type=diffusion \
--env.type=pusht
@@ -77,7 +77,7 @@ Let's break this down:
Let's see another example. Let's say you've been training [ACT](../src/lerobot/policies/act) on [lerobot/aloha_sim_insertion_human](https://huggingface.co/datasets/lerobot/aloha_sim_insertion_human) using the [gym-aloha](https://github.com/huggingface/gym-aloha) environment for evaluation with:
```bash
lerobot-train \
python -m lerobot.scripts.train \
--policy.type=act \
--dataset.repo_id=lerobot/aloha_sim_insertion_human \
--env.type=aloha \
@@ -90,7 +90,7 @@ We now want to train a different policy for aloha on another task. We'll change
Looking at the [`AlohaEnv`](../src/lerobot/envs/configs.py) config, the task is `"AlohaInsertion-v0"` by default, which corresponds to the task we trained on in the command above. The [gym-aloha](https://github.com/huggingface/gym-aloha?tab=readme-ov-file#description) environment also has the `AlohaTransferCube-v0` task which corresponds to this other task we want to train on. Putting this together, we can train this new policy on this different task using:
```bash
lerobot-train \
python -m lerobot.scripts.train \
--policy.type=act \
--dataset.repo_id=lerobot/aloha_sim_transfer_cube_human \
--env.type=aloha \
@@ -127,7 +127,7 @@ Now, let's assume that we want to reproduce the run just above. That run has pro
We can then simply load the config values from this file using:
```bash
lerobot-train \
python -m lerobot.scripts.train \
--config_path=outputs/train/act_aloha_transfer/checkpoints/last/pretrained_model/ \
--output_dir=outputs/train/act_aloha_transfer_2
```
@@ -137,7 +137,7 @@ lerobot-train \
Similarly to Hydra, we can still override some parameters in the CLI if we want to, e.g.:
```bash
lerobot-train \
python -m lerobot.scripts.train \
--config_path=outputs/train/act_aloha_transfer/checkpoints/last/pretrained_model/ \
--output_dir=outputs/train/act_aloha_transfer_2
--policy.n_action_steps=80
@@ -148,7 +148,7 @@ lerobot-train \
`--config_path` can also accept the repo_id of a repo on the hub that contains a `train_config.json` file, e.g. running:
```bash
lerobot-train --config_path=lerobot/diffusion_pusht
python -m lerobot.scripts.train --config_path=lerobot/diffusion_pusht
```
will start a training run with the same configuration used for training [lerobot/diffusion_pusht](https://huggingface.co/lerobot/diffusion_pusht)
@@ -160,7 +160,7 @@ Being able to resume a training run is important in case it crashed or aborted f
Let's reuse the command from the previous run and add a few more options:
```bash
lerobot-train \
python -m lerobot.scripts.train \
--policy.type=act \
--dataset.repo_id=lerobot/aloha_sim_transfer_cube_human \
--env.type=aloha \
@@ -179,7 +179,7 @@ INFO 2025-01-24 16:10:56 ts/train.py:263 Checkpoint policy after step 100
Now let's simulate a crash by killing the process (hit `ctrl`+`c`). We can then simply resume this run from the last checkpoint available with:
```bash
lerobot-train \
python -m lerobot.scripts.train \
--config_path=outputs/train/run_resumption/checkpoints/last/pretrained_model/ \
--resume=true
```
@@ -190,7 +190,7 @@ Another reason for which you might want to resume a run is simply to extend trai
You could double the number of steps of the previous run with:
```bash
lerobot-train \
python -m lerobot.scripts.train \
--config_path=outputs/train/run_resumption/checkpoints/last/pretrained_model/ \
--resume=true \
--steps=200000
@@ -224,7 +224,7 @@ In addition to the features currently in Draccus, we've added a special `.path`
For example, we could fine-tune a [policy pre-trained on the aloha transfer task](https://huggingface.co/lerobot/act_aloha_sim_transfer_cube_human) on the aloha insertion task. We can achieve this with:
```bash
lerobot-train \
python -m lerobot.scripts.train \
--policy.path=lerobot/act_aloha_sim_transfer_cube_human \
--dataset.repo_id=lerobot/aloha_sim_insertion_human \
--env.type=aloha \
@@ -270,7 +270,7 @@ We'll summarize here the main use cases to remember from this tutorial.
#### Train a policy from scratch CLI
```bash
lerobot-train \
python -m lerobot.scripts.train \
--policy.type=act \ # <- select 'act' policy
--env.type=pusht \ # <- select 'pusht' environment
--dataset.repo_id=lerobot/pusht # <- train on this dataset
@@ -279,7 +279,7 @@ lerobot-train \
#### Train a policy from scratch - config file + CLI
```bash
lerobot-train \
python -m lerobot.scripts.train \
--config_path=path/to/pretrained_model \ # <- can also be a repo_id
--policy.n_action_steps=80 # <- you may still override values
```
@@ -287,7 +287,7 @@ lerobot-train \
#### Resume/continue a training run
```bash
lerobot-train \
python -m lerobot.scripts.train \
--config_path=checkpoint/pretrained_model/ \
--resume=true \
--steps=200000 # <- you can change some training parameters
@@ -296,7 +296,7 @@ lerobot-train \
#### Fine-tuning
```bash
lerobot-train \
python -m lerobot.scripts.train \
--policy.path=lerobot/act_aloha_sim_transfer_cube_human \ # <- can also be a local path to a checkpoint
--dataset.repo_id=lerobot/aloha_sim_insertion_human \
--env.type=aloha \
+1 -1
View File
@@ -18,7 +18,7 @@ Replays the actions of an episode from a dataset on a robot.
Example:
```shell
lerobot-replay \
python -m lerobot.replay \
--robot.type=so100_follower \
--robot.port=/dev/tty.usbmodem58760431541 \
--robot.id=black \
+4 -5
View File
@@ -25,7 +25,7 @@ discord = "https://discord.gg/s3KuuzsPFb"
[project]
name = "lerobot"
version = "0.3.4"
version = "0.3.2"
description = "🤗 LeRobot: State-of-the-art Machine Learning for Real-World Robotics in Pytorch"
readme = "README.md"
license = { text = "Apache-2.0" }
@@ -68,16 +68,15 @@ dependencies = [
"einops>=0.8.0",
"opencv-python-headless>=4.9.0",
"av>=14.2.0",
"torch>=2.2.1",
"torchcodec>=0.2.1; sys_platform != 'win32' and (sys_platform != 'linux' or (platform_machine != 'aarch64' and platform_machine != 'arm64' and platform_machine != 'armv7l')) and (sys_platform != 'darwin' or platform_machine != 'x86_64')",
"torchvision>=0.21.0",
"jsonlines>=4.0.0",
"packaging>=24.2",
"pynput>=1.7.7",
"pyserial>=3.5",
"wandb>=0.20.0",
"torch>=2.2.1,<2.8.0", # TODO: Bumb dependency
"torchcodec>=0.2.1,<0.6.0; sys_platform != 'win32' and (sys_platform != 'linux' or (platform_machine != 'aarch64' and platform_machine != 'arm64' and platform_machine != 'armv7l')) and (sys_platform != 'darwin' or platform_machine != 'x86_64')", # TODO: Bumb dependency
"torchvision>=0.21.0,<0.23.0", # TODO: Bumb dependency
"draccus==0.10.0", # TODO: Remove ==
"gymnasium>=0.29.1,<1.0.0", # TODO: Bumb dependency
"rerun-sdk>=0.21.0,<0.23.0", # TODO: Bumb dependency
+1 -1
View File
@@ -18,7 +18,7 @@ Helper to recalibrate your device (robot or teleoperator).
Example:
```shell
lerobot-calibrate \
python -m lerobot.calibrate \
--teleop.type=so100_leader \
--teleop.port=/dev/tty.usbmodem58760431551 \
--teleop.id=blue
+3 -2
View File
@@ -60,7 +60,7 @@ class OpenCVCamera(Camera):
or port changes, especially on Linux. Use the provided utility script to find
available camera indices or paths:
```bash
lerobot-find-cameras opencv
python -m lerobot.find_cameras opencv
```
The camera's default settings (FPS, resolution, color mode) are used unless
@@ -165,7 +165,8 @@ class OpenCVCamera(Camera):
self.videocapture.release()
self.videocapture = None
raise ConnectionError(
f"Failed to open {self}.Run `lerobot-find-cameras opencv` to find available cameras."
f"Failed to open {self}."
f"Run `python -m lerobot.find_cameras opencv` to find available cameras."
)
self._configure_capture_settings()
@@ -51,7 +51,7 @@ class RealSenseCamera(Camera):
Use the provided utility script to find available camera indices and default profiles:
```bash
lerobot-find-cameras realsense
python -m lerobot.find_cameras realsense
```
A `RealSenseCamera` instance requires a configuration object specifying the
@@ -176,7 +176,8 @@ class RealSenseCamera(Camera):
self.rs_profile = None
self.rs_pipeline = None
raise ConnectionError(
f"Failed to open {self}.Run `lerobot-find-cameras realsense` to find available cameras."
f"Failed to open {self}."
"Run `python -m lerobot.find_cameras realsense` to find available cameras."
) from e
self._configure_capture_settings()
+4 -5
View File
@@ -27,7 +27,6 @@ from huggingface_hub.constants import CONFIG_NAME
from huggingface_hub.errors import HfHubHTTPError
from lerobot.configs.types import FeatureType, NormalizationMode, PolicyFeature
from lerobot.constants import ACTION, OBS_STATE
from lerobot.optim.optimizers import OptimizerConfig
from lerobot.optim.schedulers import LRSchedulerConfig
from lerobot.utils.hub import HubMixin
@@ -120,8 +119,8 @@ class PreTrainedConfig(draccus.ChoiceRegistry, HubMixin, abc.ABC):
@property
def robot_state_feature(self) -> PolicyFeature | None:
for ft_name, ft in self.input_features.items():
if ft.type is FeatureType.STATE and ft_name == OBS_STATE:
for _, ft in self.input_features.items():
if ft.type is FeatureType.STATE:
return ft
return None
@@ -138,8 +137,8 @@ class PreTrainedConfig(draccus.ChoiceRegistry, HubMixin, abc.ABC):
@property
def action_feature(self) -> PolicyFeature | None:
for ft_name, ft in self.output_features.items():
if ft.type is FeatureType.ACTION and ft_name == ACTION:
for _, ft in self.output_features.items():
if ft.type is FeatureType.ACTION:
return ft
return None
-2
View File
@@ -825,8 +825,6 @@ class LeRobotDataset(torch.utils.data.Dataset):
"""
if not episode_data:
episode_buffer = self.episode_buffer
else:
episode_buffer = episode_data
validate_episode_buffer(episode_buffer, self.meta.total_episodes, self.features)
+1 -1
View File
@@ -20,7 +20,7 @@ Helper to find the camera devices available in your system.
Example:
```shell
lerobot-find-cameras
python -m lerobot.find_cameras
```
"""
+1 -1
View File
@@ -18,7 +18,7 @@ Helper to find the USB port associated with your MotorsBus.
Example:
```shell
lerobot-find-port
python -m lerobot.find_port
```
"""
-2
View File
@@ -107,8 +107,6 @@ X_SERIES_ENCODINGS_TABLE = {
"Goal_PWM": X_SERIES_CONTROL_TABLE["Goal_PWM"][1],
"Goal_Current": X_SERIES_CONTROL_TABLE["Goal_Current"][1],
"Goal_Velocity": X_SERIES_CONTROL_TABLE["Goal_Velocity"][1],
"Goal_Position": X_SERIES_CONTROL_TABLE["Goal_Position"][1],
"Present_Position": X_SERIES_CONTROL_TABLE["Present_Position"][1],
"Present_PWM": X_SERIES_CONTROL_TABLE["Present_PWM"][1],
"Present_Current": X_SERIES_CONTROL_TABLE["Present_Current"][1],
"Present_Velocity": X_SERIES_CONTROL_TABLE["Present_Velocity"][1],
+2 -2
View File
@@ -222,7 +222,7 @@ class MotorsBus(abc.ABC):
A MotorsBus subclass instance requires a port (e.g. `FeetechMotorsBus(port="/dev/tty.usbmodem575E0031751"`)).
To find the port, you can run our utility script:
```bash
lerobot-find-port.py
python -m lerobot.find_port.py
>>> Finding all available ports for the MotorsBus.
>>> ["/dev/tty.usbmodem575E0032081", "/dev/tty.usbmodem575E0031751"]
>>> Remove the usb cable from your MotorsBus and press Enter when done.
@@ -446,7 +446,7 @@ class MotorsBus(abc.ABC):
except (FileNotFoundError, OSError, serial.SerialException) as e:
raise ConnectionError(
f"\nCould not connect on port '{self.port}'. Make sure you are using the correct port."
"\nTry running `lerobot-find-port`\n"
"\nTry running `python -m lerobot.find_port`\n"
) from e
@abc.abstractmethod
+30 -24
View File
@@ -24,6 +24,7 @@ def create_stats_buffers(
features: dict[str, PolicyFeature],
norm_map: dict[str, NormalizationMode],
stats: dict[str, dict[str, Tensor]] | None = None,
dtype: torch.dtype = torch.float32,
) -> dict[str, dict[str, nn.ParameterDict]]:
"""
Create buffers per modality (e.g. "observation.image", "action") containing their mean, std, min, max
@@ -60,8 +61,8 @@ def create_stats_buffers(
buffer = {}
if norm_mode is NormalizationMode.MEAN_STD:
mean = torch.ones(shape, dtype=torch.float32) * torch.inf
std = torch.ones(shape, dtype=torch.float32) * torch.inf
mean = torch.ones(shape, dtype=dtype) * torch.inf
std = torch.ones(shape, dtype=dtype) * torch.inf
buffer = nn.ParameterDict(
{
"mean": nn.Parameter(mean, requires_grad=False),
@@ -69,8 +70,8 @@ def create_stats_buffers(
}
)
elif norm_mode is NormalizationMode.MIN_MAX:
min = torch.ones(shape, dtype=torch.float32) * torch.inf
max = torch.ones(shape, dtype=torch.float32) * torch.inf
min = torch.ones(shape, dtype=dtype) * torch.inf
max = torch.ones(shape, dtype=dtype) * torch.inf
buffer = nn.ParameterDict(
{
"min": nn.Parameter(min, requires_grad=False),
@@ -82,22 +83,22 @@ def create_stats_buffers(
if stats:
if isinstance(stats[key]["mean"], np.ndarray):
if norm_mode is NormalizationMode.MEAN_STD:
buffer["mean"].data = torch.from_numpy(stats[key]["mean"]).to(dtype=torch.float32)
buffer["std"].data = torch.from_numpy(stats[key]["std"]).to(dtype=torch.float32)
buffer["mean"].data = torch.from_numpy(stats[key]["mean"]).to(dtype=dtype)
buffer["std"].data = torch.from_numpy(stats[key]["std"]).to(dtype=dtype)
elif norm_mode is NormalizationMode.MIN_MAX:
buffer["min"].data = torch.from_numpy(stats[key]["min"]).to(dtype=torch.float32)
buffer["max"].data = torch.from_numpy(stats[key]["max"]).to(dtype=torch.float32)
buffer["min"].data = torch.from_numpy(stats[key]["min"]).to(dtype=dtype)
buffer["max"].data = torch.from_numpy(stats[key]["max"]).to(dtype=dtype)
elif isinstance(stats[key]["mean"], torch.Tensor):
# Note: The clone is needed to make sure that the logic in save_pretrained doesn't see duplicated
# tensors anywhere (for example, when we use the same stats for normalization and
# unnormalization). See the logic here
# https://github.com/huggingface/safetensors/blob/079781fd0dc455ba0fe851e2b4507c33d0c0d407/bindings/python/py_src/safetensors/torch.py#L97.
if norm_mode is NormalizationMode.MEAN_STD:
buffer["mean"].data = stats[key]["mean"].clone().to(dtype=torch.float32)
buffer["std"].data = stats[key]["std"].clone().to(dtype=torch.float32)
buffer["mean"].data = stats[key]["mean"].clone().to(dtype=dtype)
buffer["std"].data = stats[key]["std"].clone().to(dtype=dtype)
elif norm_mode is NormalizationMode.MIN_MAX:
buffer["min"].data = stats[key]["min"].clone().to(dtype=torch.float32)
buffer["max"].data = stats[key]["max"].clone().to(dtype=torch.float32)
buffer["min"].data = stats[key]["min"].clone().to(dtype=dtype)
buffer["max"].data = stats[key]["max"].clone().to(dtype=dtype)
else:
type_ = type(stats[key]["mean"])
raise ValueError(f"np.ndarray or torch.Tensor expected, but type is '{type_}' instead.")
@@ -121,6 +122,7 @@ class Normalize(nn.Module):
features: dict[str, PolicyFeature],
norm_map: dict[str, NormalizationMode],
stats: dict[str, dict[str, Tensor]] | None = None,
dtype: torch.dtype = torch.float32,
):
"""
Args:
@@ -144,7 +146,7 @@ class Normalize(nn.Module):
self.features = features
self.norm_map = norm_map
self.stats = stats
stats_buffers = create_stats_buffers(features, norm_map, stats)
stats_buffers = create_stats_buffers(features, norm_map, stats, dtype)
for key, buffer in stats_buffers.items():
setattr(self, "buffer_" + key.replace(".", "_"), buffer)
@@ -195,6 +197,7 @@ class Unnormalize(nn.Module):
features: dict[str, PolicyFeature],
norm_map: dict[str, NormalizationMode],
stats: dict[str, dict[str, Tensor]] | None = None,
dtype: torch.dtype = torch.float32,
):
"""
Args:
@@ -219,7 +222,7 @@ class Unnormalize(nn.Module):
self.norm_map = norm_map
self.stats = stats
# `self.buffer_observation_state["mean"]` contains `torch.tensor(state_dim)`
stats_buffers = create_stats_buffers(features, norm_map, stats)
stats_buffers = create_stats_buffers(features, norm_map, stats, dtype)
for key, buffer in stats_buffers.items():
setattr(self, "buffer_" + key.replace(".", "_"), buffer)
@@ -262,6 +265,7 @@ def _initialize_stats_buffers(
features: dict[str, PolicyFeature],
norm_map: dict[str, NormalizationMode],
stats: dict[str, dict[str, Tensor]] | None = None,
dtype: torch.dtype = torch.float32,
) -> None:
"""Register statistics buffers (mean/std or min/max) on the given *module*.
@@ -282,8 +286,8 @@ def _initialize_stats_buffers(
prefix = key.replace(".", "_")
if norm_mode is NormalizationMode.MEAN_STD:
mean = torch.full(shape, torch.inf, dtype=torch.float32)
std = torch.full(shape, torch.inf, dtype=torch.float32)
mean = torch.full(shape, torch.inf, dtype=dtype)
std = torch.full(shape, torch.inf, dtype=dtype)
if stats and key in stats and "mean" in stats[key] and "std" in stats[key]:
mean_data = stats[key]["mean"]
@@ -293,8 +297,8 @@ def _initialize_stats_buffers(
# tensors anywhere (for example, when we use the same stats for normalization and
# unnormalization). See the logic here
# https://github.com/huggingface/safetensors/blob/079781fd0dc455ba0fe851e2b4507c33d0c0d407/bindings/python/py_src/safetensors/torch.py#L97.
mean = mean_data.clone().to(dtype=torch.float32)
std = std_data.clone().to(dtype=torch.float32)
mean = mean_data.clone().to(dtype=dtype)
std = std_data.clone().to(dtype=dtype)
else:
raise ValueError(f"Unsupported stats type for key '{key}' (expected ndarray or Tensor).")
@@ -303,15 +307,15 @@ def _initialize_stats_buffers(
continue
if norm_mode is NormalizationMode.MIN_MAX:
min_val = torch.full(shape, torch.inf, dtype=torch.float32)
max_val = torch.full(shape, torch.inf, dtype=torch.float32)
min_val = torch.full(shape, torch.inf, dtype=dtype)
max_val = torch.full(shape, torch.inf, dtype=dtype)
if stats and key in stats and "min" in stats[key] and "max" in stats[key]:
min_data = stats[key]["min"]
max_data = stats[key]["max"]
if isinstance(min_data, torch.Tensor):
min_val = min_data.clone().to(dtype=torch.float32)
max_val = max_data.clone().to(dtype=torch.float32)
min_val = min_data.clone().to(dtype=dtype)
max_val = max_data.clone().to(dtype=dtype)
else:
raise ValueError(f"Unsupported stats type for key '{key}' (expected ndarray or Tensor).")
@@ -330,12 +334,13 @@ class NormalizeBuffer(nn.Module):
features: dict[str, PolicyFeature],
norm_map: dict[str, NormalizationMode],
stats: dict[str, dict[str, Tensor]] | None = None,
dtype: torch.dtype = torch.float32,
):
super().__init__()
self.features = features
self.norm_map = norm_map
_initialize_stats_buffers(self, features, norm_map, stats)
_initialize_stats_buffers(self, features, norm_map, stats, dtype)
def forward(self, batch: dict[str, Tensor]) -> dict[str, Tensor]:
batch = dict(batch)
@@ -379,12 +384,13 @@ class UnnormalizeBuffer(nn.Module):
features: dict[str, PolicyFeature],
norm_map: dict[str, NormalizationMode],
stats: dict[str, dict[str, Tensor]] | None = None,
dtype: torch.dtype = torch.float32,
):
super().__init__()
self.features = features
self.norm_map = norm_map
_initialize_stats_buffers(self, features, norm_map, stats)
_initialize_stats_buffers(self, features, norm_map, stats, dtype)
def forward(self, batch: dict[str, Tensor]) -> dict[str, Tensor]:
# batch = dict(batch)
+2 -2
View File
@@ -30,7 +30,7 @@ pip install -e ".[pi0]"
Example of finetuning the pi0 pretrained model (`pi0_base` in `openpi`):
```bash
lerobot-train \
python -m lerobot.scripts.train \
--policy.path=lerobot/pi0 \
--dataset.repo_id=danaaubakirova/koch_test
```
@@ -38,7 +38,7 @@ lerobot-train \
Example of finetuning the pi0 neural network with PaliGemma and expert Gemma
pretrained with VLM default parameters before pi0 finetuning:
```bash
lerobot-train \
python -m lerobot.scripts.train \
--policy.type=pi0 \
--dataset.repo_id=danaaubakirova/koch_test
```
@@ -25,14 +25,14 @@ Disclaimer: It is not expected to perform as well as the original implementation
Example of finetuning the pi0+FAST pretrained model (`pi0_fast_base` in `openpi`):
```bash
lerobot-train \
python -m lerobot.scripts.train \
--policy.path=lerobot/pi0fast_base \
--dataset.repo_id=danaaubakirova/koch_test
```
Example of training the pi0+FAST neural network with from scratch:
```bash
lerobot-train \
python -m lerobot.scripts.train \
--policy.type=pi0fast \
--dataset.repo_id=danaaubakirova/koch_test
```
@@ -28,7 +28,7 @@ pip install -e ".[smolvla]"
Example of finetuning the smolvla pretrained model (`smolvla_base`):
```bash
lerobot-train \
python -m lerobot.scripts.train \
--policy.path=lerobot/smolvla_base \
--dataset.repo_id=danaaubakirova/svla_so100_task1_v3 \
--batch_size=64 \
@@ -38,7 +38,7 @@ lerobot-train \
Example of finetuning a smolVLA. SmolVLA is composed of a pretrained VLM,
and an action expert.
```bash
lerobot-train \
python -m lerobot.scripts.train \
--policy.type=smolvla \
--dataset.repo_id=danaaubakirova/svla_so100_task1_v3 \
--batch_size=64 \
@@ -673,19 +673,19 @@ class VLAFlowMatching(nn.Module):
for params in self.state_proj.parameters():
params.requires_grad = self.config.train_state_proj
def sample_noise(self, shape, device):
def sample_noise(self, shape, device, dtype):
noise = torch.normal(
mean=0.0,
std=1.0,
size=shape,
dtype=torch.float32,
dtype=dtype,
device=device,
)
return noise
def sample_time(self, bsize, device):
def sample_time(self, bsize, device, dtype):
beta_dist = torch.distributions.Beta(concentration1=1.5, concentration0=1.0)
time_beta = beta_dist.sample((bsize,)).to(device=device, dtype=torch.float32)
time_beta = beta_dist.sample((bsize,)).to(device=device, dtype=dtype)
time = time_beta * 0.999 + 0.001
return time
@@ -831,10 +831,10 @@ class VLAFlowMatching(nn.Module):
) -> Tensor:
"""Do a full training forward pass and compute the loss (batch_size x num_steps x num_motors)"""
if noise is None:
noise = self.sample_noise(actions.shape, actions.device)
noise = self.sample_noise(actions.shape, actions.device, actions.dtype)
if time is None:
time = self.sample_time(actions.shape[0], actions.device)
time = self.sample_time(actions.shape[0], actions.device, actions.dtype)
time_expanded = time[:, None, None]
x_t = time_expanded * noise + (1 - time_expanded) * actions
@@ -868,10 +868,11 @@ class VLAFlowMatching(nn.Module):
"""Do a full inference forward and compute the action (batch_size x num_steps x num_motors)"""
bsize = state.shape[0]
device = state.device
dtype = state.dtype
if noise is None:
actions_shape = (bsize, self.config.chunk_size, self.config.max_action_dim)
noise = self.sample_noise(actions_shape, device)
noise = self.sample_noise(actions_shape, device, dtype)
prefix_embs, prefix_pad_masks, prefix_att_masks = self.embed_prefix(
images, img_masks, lang_tokens, lang_masks, state=state
@@ -888,18 +889,13 @@ class VLAFlowMatching(nn.Module):
fill_kv_cache=True,
)
dt = -1.0 / self.config.num_steps
dt = torch.tensor(dt, dtype=torch.float32, device=device)
dt = torch.tensor(dt, dtype=dtype, device=device)
x_t = noise
time = torch.tensor(1.0, dtype=torch.float32, device=device)
time = torch.tensor(1.0, dtype=dtype, device=device)
while time >= -dt / 2:
expanded_time = time.expand(bsize)
v_t = self.denoise_step(
prefix_pad_masks,
past_key_values,
x_t,
expanded_time,
)
v_t = self.denoise_step(prefix_pad_masks, past_key_values, x_t, expanded_time, dtype)
# Euler step
x_t += dt * v_t
time += dt
@@ -911,6 +907,7 @@ class VLAFlowMatching(nn.Module):
past_key_values,
x_t,
timestep,
dtype,
):
"""Apply one denoising step of the noise `x_t` at a given timestep."""
suffix_embs, suffix_pad_masks, suffix_att_masks = self.embed_suffix(x_t, timestep)
@@ -936,6 +933,6 @@ class VLAFlowMatching(nn.Module):
)
suffix_out = outputs_embeds[1]
suffix_out = suffix_out[:, -self.config.chunk_size :]
suffix_out = suffix_out.to(dtype=torch.float32)
suffix_out = suffix_out.to(dtype=dtype)
v_t = self.action_out_proj(suffix_out)
return v_t
-54
View File
@@ -1,54 +0,0 @@
#!/usr/bin/env python
# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from .device_processor import DeviceProcessor
from .normalize_processor import NormalizerProcessor, UnnormalizerProcessor
from .observation_processor import VanillaObservationProcessor
from .pipeline import (
ActionProcessor,
DoneProcessor,
EnvTransition,
IdentityProcessor,
InfoProcessor,
ObservationProcessor,
ProcessorStep,
ProcessorStepRegistry,
RewardProcessor,
RobotProcessor,
TransitionKey,
TruncatedProcessor,
)
from .rename_processor import RenameProcessor
__all__ = [
"ActionProcessor",
"DeviceProcessor",
"DoneProcessor",
"EnvTransition",
"IdentityProcessor",
"InfoProcessor",
"NormalizerProcessor",
"UnnormalizerProcessor",
"ObservationProcessor",
"ProcessorStep",
"ProcessorStepRegistry",
"RenameProcessor",
"RewardProcessor",
"RobotProcessor",
"TransitionKey",
"TruncatedProcessor",
"VanillaObservationProcessor",
]
-82
View File
@@ -1,82 +0,0 @@
#!/usr/bin/env python
# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from dataclasses import dataclass
from typing import Any
import torch
from lerobot.configs.types import PolicyFeature
from lerobot.processor.pipeline import EnvTransition, TransitionKey
from lerobot.utils.utils import get_safe_torch_device
@dataclass
class DeviceProcessor:
"""Processes transitions by moving tensors to the specified device.
This processor ensures that all tensors in the transition are moved to the
specified device (CPU or GPU) before they are returned.
"""
device: torch.device = "cpu"
def __post_init__(self):
self.device = get_safe_torch_device(self.device)
self.non_blocking = "cuda" in str(self.device)
def __call__(self, transition: EnvTransition) -> EnvTransition:
# Create a copy of the transition
new_transition = transition.copy()
# Process observation tensors
observation = transition.get(TransitionKey.OBSERVATION)
if observation is not None:
new_observation = {
k: v.to(self.device, non_blocking=self.non_blocking) if isinstance(v, torch.Tensor) else v
for k, v in observation.items()
}
new_transition[TransitionKey.OBSERVATION] = new_observation
# Process action tensor
action = transition.get(TransitionKey.ACTION)
if action is not None and isinstance(action, torch.Tensor):
new_transition[TransitionKey.ACTION] = action.to(self.device, non_blocking=self.non_blocking)
# Process reward tensor
reward = transition.get(TransitionKey.REWARD)
if reward is not None and isinstance(reward, torch.Tensor):
new_transition[TransitionKey.REWARD] = reward.to(self.device, non_blocking=self.non_blocking)
# Process done tensor
done = transition.get(TransitionKey.DONE)
if done is not None and isinstance(done, torch.Tensor):
new_transition[TransitionKey.DONE] = done.to(self.device, non_blocking=self.non_blocking)
# Process truncated tensor
truncated = transition.get(TransitionKey.TRUNCATED)
if truncated is not None and isinstance(truncated, torch.Tensor):
new_transition[TransitionKey.TRUNCATED] = truncated.to(
self.device, non_blocking=self.non_blocking
)
return new_transition
def get_config(self) -> dict[str, Any]:
"""Return configuration for serialization."""
return {"device": self.device}
def feature_contract(self, features: dict[str, PolicyFeature]) -> dict[str, PolicyFeature]:
return features
@@ -1,331 +0,0 @@
from __future__ import annotations
from collections.abc import Mapping
from dataclasses import dataclass, field
from typing import Any
import numpy as np
import torch
from torch import Tensor
from lerobot.configs.types import FeatureType, NormalizationMode, PolicyFeature
from lerobot.datasets.lerobot_dataset import LeRobotDataset
from lerobot.processor.pipeline import EnvTransition, ProcessorStepRegistry, TransitionKey
def _convert_stats_to_tensors(stats: dict[str, dict[str, Any]]) -> dict[str, dict[str, Tensor]]:
"""Convert numpy arrays and other types to torch tensors."""
tensor_stats: dict[str, dict[str, Tensor]] = {}
for key, sub in stats.items():
tensor_stats[key] = {}
for stat_name, value in sub.items():
if isinstance(value, np.ndarray):
tensor_val = torch.from_numpy(value.astype(np.float32))
elif isinstance(value, torch.Tensor):
tensor_val = value.to(dtype=torch.float32)
elif isinstance(value, (int, float, list, tuple)):
tensor_val = torch.tensor(value, dtype=torch.float32)
else:
raise TypeError(f"Unsupported type for stats['{key}']['{stat_name}']: {type(value)}")
tensor_stats[key][stat_name] = tensor_val
return tensor_stats
@dataclass
@ProcessorStepRegistry.register(name="normalizer_processor")
class NormalizerProcessor:
"""Normalizes observations and actions in a single processor step.
This processor handles normalization of both observation and action tensors
using either mean/std normalization or min/max scaling to a [-1, 1] range.
For each tensor key in the stats dictionary, the processor will:
- Use mean/std normalization if those statistics are provided: (x - mean) / std
- Use min/max scaling if those statistics are provided: 2 * (x - min) / (max - min) - 1
The processor can be configured to normalize only specific keys by setting
the normalize_keys parameter.
"""
# Features and normalisation map are mandatory to match the design of normalize.py
features: dict[str, PolicyFeature]
norm_map: dict[FeatureType, NormalizationMode]
# Pre-computed statistics coming from dataset.meta.stats for instance.
stats: dict[str, dict[str, Any]] | None = None
# Explicit subset of keys to normalise. If ``None`` every key (except
# "action") found in ``stats`` will be normalised. Using a ``set`` makes
# membership checks O(1).
normalize_keys: set[str] | None = None
eps: float = 1e-8
_tensor_stats: dict[str, dict[str, Tensor]] = field(default_factory=dict, init=False, repr=False)
@classmethod
def from_lerobot_dataset(
cls,
dataset: LeRobotDataset,
features: dict[str, PolicyFeature],
norm_map: dict[FeatureType, NormalizationMode],
*,
normalize_keys: set[str] | None = None,
eps: float = 1e-8,
) -> NormalizerProcessor:
"""Factory helper that pulls statistics from a :class:`LeRobotDataset`.
The features and norm_map parameters are mandatory to match the design
pattern used in normalize.py.
"""
return cls(
features=features,
norm_map=norm_map,
stats=dataset.meta.stats,
normalize_keys=normalize_keys,
eps=eps,
)
def __post_init__(self):
# Handle deserialization from JSON config
if self.features and isinstance(list(self.features.values())[0], dict):
# Features came from JSON - need to reconstruct PolicyFeature objects
reconstructed_features = {}
for key, ft_dict in self.features.items():
reconstructed_features[key] = PolicyFeature(
type=FeatureType(ft_dict["type"]), shape=tuple(ft_dict["shape"])
)
self.features = reconstructed_features
if self.norm_map and isinstance(list(self.norm_map.keys())[0], str):
# norm_map came from JSON - need to reconstruct enum keys and values
reconstructed_norm_map = {}
for ft_type_str, norm_mode_str in self.norm_map.items():
reconstructed_norm_map[FeatureType(ft_type_str)] = NormalizationMode(norm_mode_str)
self.norm_map = reconstructed_norm_map
# Convert statistics once so we avoid repeated numpy→Tensor conversions
# during runtime.
self.stats = self.stats or {}
self._tensor_stats = _convert_stats_to_tensors(self.stats)
# Ensure *normalize_keys* is a set for fast look-ups and compare by
# value later when returning the configuration.
if self.normalize_keys is not None and not isinstance(self.normalize_keys, set):
self.normalize_keys = set(self.normalize_keys)
def _normalize_obs(self, observation):
if observation is None:
return None
# Decide which keys should be normalised for this call.
if self.normalize_keys is not None:
keys_to_norm = self.normalize_keys
else:
# Use feature map to skip action keys.
keys_to_norm = {k for k, ft in self.features.items() if ft.type is not FeatureType.ACTION}
processed = dict(observation)
for key in keys_to_norm:
if key not in processed or key not in self._tensor_stats:
continue
orig_val = processed[key]
tensor = (
orig_val.to(dtype=torch.float32)
if isinstance(orig_val, torch.Tensor)
else torch.as_tensor(orig_val, dtype=torch.float32)
)
stats = {k: v.to(tensor.device) for k, v in self._tensor_stats[key].items()}
if "mean" in stats and "std" in stats:
mean, std = stats["mean"], stats["std"]
processed[key] = (tensor - mean) / (std + self.eps)
elif "min" in stats and "max" in stats:
min_val, max_val = stats["min"], stats["max"]
processed[key] = 2 * (tensor - min_val) / (max_val - min_val + self.eps) - 1
return processed
def _normalize_action(self, action):
if action is None or "action" not in self._tensor_stats:
return action
tensor = (
action.to(dtype=torch.float32)
if isinstance(action, torch.Tensor)
else torch.as_tensor(action, dtype=torch.float32)
)
stats = {k: v.to(tensor.device) for k, v in self._tensor_stats["action"].items()}
if "mean" in stats and "std" in stats:
mean, std = stats["mean"], stats["std"]
return (tensor - mean) / (std + self.eps)
if "min" in stats and "max" in stats:
min_val, max_val = stats["min"], stats["max"]
return 2 * (tensor - min_val) / (max_val - min_val + self.eps) - 1
raise ValueError("Action stats must contain either ('mean','std') or ('min','max')")
def __call__(self, transition: EnvTransition) -> EnvTransition:
observation = self._normalize_obs(transition.get(TransitionKey.OBSERVATION))
action = self._normalize_action(transition.get(TransitionKey.ACTION))
# Create a new transition with normalized values
new_transition = transition.copy()
new_transition[TransitionKey.OBSERVATION] = observation
new_transition[TransitionKey.ACTION] = action
return new_transition
def get_config(self) -> dict[str, Any]:
config = {
"eps": self.eps,
"features": {
key: {"type": ft.type.value, "shape": ft.shape} for key, ft in self.features.items()
},
"norm_map": {ft_type.value: norm_mode.value for ft_type, norm_mode in self.norm_map.items()},
}
if self.normalize_keys is not None:
# Serialise as a list for YAML / JSON friendliness
config["normalize_keys"] = sorted(self.normalize_keys)
return config
def state_dict(self) -> dict[str, Tensor]:
flat = {}
for key, sub in self._tensor_stats.items():
for stat_name, tensor in sub.items():
flat[f"{key}.{stat_name}"] = tensor
return flat
def load_state_dict(self, state: Mapping[str, Tensor]) -> None:
self._tensor_stats.clear()
for flat_key, tensor in state.items():
key, stat_name = flat_key.rsplit(".", 1)
self._tensor_stats.setdefault(key, {})[stat_name] = tensor
def reset(self):
pass
def feature_contract(self, features: dict[str, PolicyFeature]) -> dict[str, PolicyFeature]:
return features
@dataclass
@ProcessorStepRegistry.register(name="unnormalizer_processor")
class UnnormalizerProcessor:
"""Inverse normalisation for observations and actions.
Exactly mirrors :class:`NormalizerProcessor` but applies the inverse
transform.
"""
features: dict[str, PolicyFeature]
norm_map: dict[FeatureType, NormalizationMode]
stats: dict[str, dict[str, Any]] | None = None
_tensor_stats: dict[str, dict[str, Tensor]] = field(default_factory=dict, init=False, repr=False)
@classmethod
def from_lerobot_dataset(
cls,
dataset: LeRobotDataset,
features: dict[str, PolicyFeature],
norm_map: dict[FeatureType, NormalizationMode],
) -> UnnormalizerProcessor:
return cls(features=features, norm_map=norm_map, stats=dataset.meta.stats)
def __post_init__(self):
# Handle deserialization from JSON config
if self.features and isinstance(list(self.features.values())[0], dict):
# Features came from JSON - need to reconstruct PolicyFeature objects
reconstructed_features = {}
for key, ft_dict in self.features.items():
reconstructed_features[key] = PolicyFeature(
type=FeatureType(ft_dict["type"]), shape=tuple(ft_dict["shape"])
)
self.features = reconstructed_features
if self.norm_map and isinstance(list(self.norm_map.keys())[0], str):
# norm_map came from JSON - need to reconstruct enum keys and values
reconstructed_norm_map = {}
for ft_type_str, norm_mode_str in self.norm_map.items():
reconstructed_norm_map[FeatureType(ft_type_str)] = NormalizationMode(norm_mode_str)
self.norm_map = reconstructed_norm_map
self.stats = self.stats or {}
self._tensor_stats = _convert_stats_to_tensors(self.stats)
def _unnormalize_obs(self, observation):
if observation is None:
return None
keys = [k for k, ft in self.features.items() if ft.type is not FeatureType.ACTION]
processed = dict(observation)
for key in keys:
if key not in processed or key not in self._tensor_stats:
continue
orig_val = processed[key]
tensor = (
orig_val.to(dtype=torch.float32)
if isinstance(orig_val, torch.Tensor)
else torch.as_tensor(orig_val, dtype=torch.float32)
)
stats = {k: v.to(tensor.device) for k, v in self._tensor_stats[key].items()}
if "mean" in stats and "std" in stats:
mean, std = stats["mean"], stats["std"]
processed[key] = tensor * std + mean
elif "min" in stats and "max" in stats:
min_val, max_val = stats["min"], stats["max"]
processed[key] = (tensor + 1) / 2 * (max_val - min_val) + min_val
return processed
def _unnormalize_action(self, action):
if action is None or "action" not in self._tensor_stats:
return action
tensor = (
action.to(dtype=torch.float32)
if isinstance(action, torch.Tensor)
else torch.as_tensor(action, dtype=torch.float32)
)
stats = {k: v.to(tensor.device) for k, v in self._tensor_stats["action"].items()}
if "mean" in stats and "std" in stats:
mean, std = stats["mean"], stats["std"]
return tensor * std + mean
if "min" in stats and "max" in stats:
min_val, max_val = stats["min"], stats["max"]
return (tensor + 1) / 2 * (max_val - min_val) + min_val
raise ValueError("Action stats must contain either ('mean','std') or ('min','max')")
def __call__(self, transition: EnvTransition) -> EnvTransition:
observation = self._unnormalize_obs(transition.get(TransitionKey.OBSERVATION))
action = self._unnormalize_action(transition.get(TransitionKey.ACTION))
# Create a new transition with unnormalized values
new_transition = transition.copy()
new_transition[TransitionKey.OBSERVATION] = observation
new_transition[TransitionKey.ACTION] = action
return new_transition
def get_config(self) -> dict[str, Any]:
return {
"features": {
key: {"type": ft.type.value, "shape": ft.shape} for key, ft in self.features.items()
},
"norm_map": {ft_type.value: norm_mode.value for ft_type, norm_mode in self.norm_map.items()},
}
def state_dict(self) -> dict[str, Tensor]:
flat = {}
for key, sub in self._tensor_stats.items():
for stat_name, tensor in sub.items():
flat[f"{key}.{stat_name}"] = tensor
return flat
def load_state_dict(self, state: Mapping[str, Tensor]) -> None:
self._tensor_stats.clear()
for flat_key, tensor in state.items():
key, stat_name = flat_key.rsplit(".", 1)
self._tensor_stats.setdefault(key, {})[stat_name] = tensor
def reset(self):
pass
def feature_contract(self, features: dict[str, PolicyFeature]) -> dict[str, PolicyFeature]:
return features
@@ -1,157 +0,0 @@
#!/usr/bin/env python
# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from dataclasses import dataclass
import einops
import numpy as np
import torch
from torch import Tensor
from lerobot.configs.types import PolicyFeature
from lerobot.constants import OBS_ENV_STATE, OBS_IMAGE, OBS_IMAGES, OBS_STATE
from lerobot.processor.pipeline import ObservationProcessor, ProcessorStepRegistry
@dataclass
@ProcessorStepRegistry.register(name="observation_processor")
class VanillaObservationProcessor(ObservationProcessor):
"""
Processes environment observations into the LeRobot format by handling both images and states.
Image processing:
- Converts channel-last (H, W, C) images to channel-first (C, H, W)
- Normalizes uint8 images ([0, 255]) to float32 ([0, 1])
- Adds a batch dimension if missing
- Supports single images and image dictionaries
State processing:
- Maps 'environment_state' to observation.environment_state
- Maps 'agent_pos' to observation.state
- Converts numpy arrays to tensors
- Adds a batch dimension if missing
"""
def _process_single_image(self, img: np.ndarray) -> Tensor:
"""Process a single image array."""
# Convert to tensor
img_tensor = torch.from_numpy(img)
# Add batch dimension if needed
if img_tensor.ndim == 3:
img_tensor = img_tensor.unsqueeze(0)
# Validate image format
_, h, w, c = img_tensor.shape
if not (c < h and c < w):
raise ValueError(f"Expected channel-last images, but got shape {img_tensor.shape}")
if img_tensor.dtype != torch.uint8:
raise ValueError(f"Expected torch.uint8 images, but got {img_tensor.dtype}")
# Convert to channel-first format
img_tensor = einops.rearrange(img_tensor, "b h w c -> b c h w").contiguous()
# Convert to float32 and normalize to [0, 1]
img_tensor = img_tensor.type(torch.float32) / 255.0
return img_tensor
def _process_observation(self, observation):
"""
Processes both image and state observations.
"""
processed_obs = observation.copy()
if "pixels" in processed_obs:
pixels = processed_obs.pop("pixels")
if isinstance(pixels, dict):
imgs = {f"{OBS_IMAGES}.{key}": img for key, img in pixels.items()}
else:
imgs = {OBS_IMAGE: pixels}
for imgkey, img in imgs.items():
processed_obs[imgkey] = self._process_single_image(img)
if "environment_state" in processed_obs:
env_state_np = processed_obs.pop("environment_state")
env_state = torch.from_numpy(env_state_np).float()
if env_state.dim() == 1:
env_state = env_state.unsqueeze(0)
processed_obs[OBS_ENV_STATE] = env_state
if "agent_pos" in processed_obs:
agent_pos_np = processed_obs.pop("agent_pos")
agent_pos = torch.from_numpy(agent_pos_np).float()
if agent_pos.dim() == 1:
agent_pos = agent_pos.unsqueeze(0)
processed_obs[OBS_STATE] = agent_pos
return processed_obs
def observation(self, observation):
return self._process_observation(observation)
def feature_contract(self, features: dict[str, PolicyFeature]) -> dict[str, PolicyFeature]:
"""Transforms feature keys to a standardized contract.
This method handles several renaming patterns:
- Exact matches (e.g., 'pixels' -> 'OBS_IMAGE').
- Prefixed exact matches (e.g., 'observation.pixels' -> 'OBS_IMAGE').
- Prefix matches (e.g., 'pixels.cam1' -> 'OBS_IMAGES.cam1').
- Prefixed prefix matches (e.g., 'observation.pixels.cam1' -> 'OBS_IMAGES.cam1').
- environment_state -> OBS_ENV_STATE,
- agent_pos -> OBS_STATE,
- observation.environment_state -> OBS_ENV_STATE,
- observation.agent_pos -> OBS_STATE
"""
exact_pairs = {
"pixels": OBS_IMAGE,
"environment_state": OBS_ENV_STATE,
"agent_pos": OBS_STATE,
}
prefix_pairs = {
"pixels.": f"{OBS_IMAGES}.",
}
for key in list(features.keys()):
matched_prefix = False
for old_prefix, new_prefix in prefix_pairs.items():
prefixed_old = f"observation.{old_prefix}"
if key.startswith(prefixed_old):
suffix = key[len(prefixed_old) :]
features[f"{new_prefix}{suffix}"] = features.pop(key)
matched_prefix = True
break
if key.startswith(old_prefix):
suffix = key[len(old_prefix) :]
features[f"{new_prefix}{suffix}"] = features.pop(key)
matched_prefix = True
break
if matched_prefix:
continue
for old, new in exact_pairs.items():
if key == old or key == f"observation.{old}":
if key in features:
features[new] = features.pop(key)
break
return features
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-51
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@@ -1,51 +0,0 @@
#!/usr/bin/env python
# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from dataclasses import dataclass, field
from typing import Any
from lerobot.configs.types import PolicyFeature
from lerobot.processor.pipeline import (
ObservationProcessor,
ProcessorStepRegistry,
)
@dataclass
@ProcessorStepRegistry.register(name="rename_processor")
class RenameProcessor(ObservationProcessor):
"""Rename processor that renames keys in the observation."""
rename_map: dict[str, str] = field(default_factory=dict)
def observation(self, observation):
processed_obs = {}
for key, value in observation.items():
if key in self.rename_map:
processed_obs[self.rename_map[key]] = value
else:
processed_obs[key] = value
return processed_obs
def get_config(self) -> dict[str, Any]:
return {"rename_map": self.rename_map}
def feature_contract(self, features: dict[str, PolicyFeature]) -> dict[str, PolicyFeature]:
"""Transforms:
- Each key in the observation that appears in `rename_map` is renamed to its value.
- Keys not in `rename_map` remain unchanged.
"""
return {self.rename_map.get(k, k): v for k, v in features.items()}
+2 -2
View File
@@ -18,7 +18,7 @@ Records a dataset. Actions for the robot can be either generated by teleoperatio
Example:
```shell
lerobot-record \
python -m lerobot.record \
--robot.type=so100_follower \
--robot.port=/dev/tty.usbmodem58760431541 \
--robot.cameras="{laptop: {type: opencv, camera_index: 0, width: 640, height: 480}}" \
@@ -36,7 +36,7 @@ lerobot-record \
Example recording with bimanual so100:
```shell
lerobot-record \
python -m lerobot.record \
--robot.type=bi_so100_follower \
--robot.left_arm_port=/dev/tty.usbmodem5A460851411 \
--robot.right_arm_port=/dev/tty.usbmodem5A460812391 \
+2 -2
View File
@@ -18,7 +18,7 @@ Replays the actions of an episode from a dataset on a robot.
Examples:
```shell
lerobot-replay \
python -m lerobot.replay \
--robot.type=so100_follower \
--robot.port=/dev/tty.usbmodem58760431541 \
--robot.id=black \
@@ -28,7 +28,7 @@ lerobot-replay \
Example replay with bimanual so100:
```shell
lerobot-replay \
python -m lerobot.replay \
--robot.type=bi_so100_follower \
--robot.left_arm_port=/dev/tty.usbmodem5A460851411 \
--robot.right_arm_port=/dev/tty.usbmodem5A460812391 \
@@ -161,11 +161,6 @@ class SO100Follower(Robot):
self.bus.write("I_Coefficient", motor, 0)
self.bus.write("D_Coefficient", motor, 32)
if motor == "gripper":
self.bus.write("Max_Torque_Limit", motor, 500) # 50% of max torque to avoid burnout
self.bus.write("Protection_Current", motor, 250) # 50% of max current to avoid burnout
self.bus.write("Overload_Torque", motor, 25) # 25% torque when overloaded
def setup_motors(self) -> None:
for motor in reversed(self.bus.motors):
input(f"Connect the controller board to the '{motor}' motor only and press enter.")
@@ -157,13 +157,6 @@ class SO101Follower(Robot):
self.bus.write("I_Coefficient", motor, 0)
self.bus.write("D_Coefficient", motor, 32)
if motor == "gripper":
self.bus.write(
"Max_Torque_Limit", motor, 500
) # 50% of the max torque limit to avoid burnout
self.bus.write("Protection_Current", motor, 250) # 50% of max current to avoid burnout
self.bus.write("Overload_Torque", motor, 25) # 25% torque when overloaded
def setup_motors(self) -> None:
for motor in reversed(self.bus.motors):
input(f"Connect the controller board to the '{motor}' motor only and press enter.")
+2 -2
View File
@@ -141,10 +141,10 @@ python lerobot/scripts/control_robot.py \
## Train a policy
To train a policy to control your robot, use the [`lerobot-train`](../src/lerobot/scripts/train.py) script. A few arguments are required. Here is an example command:
To train a policy to control your robot, use the [`python -m lerobot.scripts.train`](../src/lerobot/scripts/train.py) script. A few arguments are required. Here is an example command:
```bash
lerobot-train \
python -m lerobot.scripts.train \
--dataset.repo_id=${HF_USER}/aloha_test \
--policy.type=act \
--output_dir=outputs/train/act_aloha_test \
+3 -7
View File
@@ -21,7 +21,7 @@ You want to evaluate a model from the hub (eg: https://huggingface.co/lerobot/di
for 10 episodes.
```
lerobot-eval \
python -m lerobot.scripts.eval \
--policy.path=lerobot/diffusion_pusht \
--env.type=pusht \
--eval.batch_size=10 \
@@ -32,7 +32,7 @@ lerobot-eval \
OR, you want to evaluate a model checkpoint from the LeRobot training script for 10 episodes.
```
lerobot-eval \
python -m lerobot.scripts.eval \
--policy.path=outputs/train/diffusion_pusht/checkpoints/005000/pretrained_model \
--env.type=pusht \
--eval.batch_size=10 \
@@ -243,11 +243,7 @@ def eval_policy(
if max_episodes_rendered > 0 and not videos_dir:
raise ValueError("If max_episodes_rendered > 0, videos_dir must be provided.")
# Handle accelerate-wrapped models by unwrapping them
if hasattr(policy, 'module') and isinstance(policy.module, PreTrainedPolicy):
# This is likely an accelerate-wrapped model (DistributedDataParallel)
policy = policy.module
elif not isinstance(policy, PreTrainedPolicy):
if not isinstance(policy, PreTrainedPolicy):
raise ValueError(
f"Policy of type 'PreTrainedPolicy' is expected, but type '{type(policy)}' was provided."
)
@@ -302,6 +302,11 @@ class RobotClient:
self.logger.debug(f"Current latest action: {latest_action}")
# Get queue state before changes
old_size, old_timesteps = self._inspect_action_queue()
if not old_timesteps:
old_timesteps = [latest_action] # queue was empty
# Get queue state before changes
old_size, old_timesteps = self._inspect_action_queue()
if not old_timesteps:
+30 -99
View File
@@ -16,7 +16,6 @@
import logging
import time
from contextlib import nullcontext
from functools import partial
from pprint import pformat
from typing import Any
@@ -24,8 +23,6 @@ import torch
from termcolor import colored
from torch.amp import GradScaler
from torch.optim import Optimizer
import os
from datetime import timedelta
from lerobot.configs import parser
from lerobot.configs.train import TrainPipelineConfig
@@ -55,8 +52,6 @@ from lerobot.utils.utils import (
)
from lerobot.utils.wandb_utils import WandBLogger
def is_launched_with_accelerate() -> bool:
return "ACCELERATE_MIXED_PRECISION" in os.environ
def update_policy(
train_metrics: MetricsTracker,
@@ -64,65 +59,36 @@ def update_policy(
batch: Any,
optimizer: Optimizer,
grad_clip_norm: float,
grad_scaler: GradScaler | None,
grad_scaler: GradScaler,
lr_scheduler=None,
use_amp: bool = False,
lock=None,
accelerator=None,
) -> tuple[MetricsTracker, dict]:
start_time = time.perf_counter()
device = get_device_from_parameters(policy)
policy.train()
grad_norm = 0.0 # Initialize grad_norm to avoid undefined variable
if accelerator:
with accelerator.accumulate(policy):
with torch.autocast(device_type=device.type) if use_amp else nullcontext():
loss, output_dict = policy.forward(batch)
# TODO(rcadene): policy.unnormalize_outputs(out_dict)
accelerator.backward(loss)
if accelerator.sync_gradients:
grad_norm = torch.nn.utils.clip_grad_norm_(
policy.parameters(),
grad_clip_norm,
error_if_nonfinite=False,
)
optimizer.step()
optimizer.zero_grad()
else:
# Standard training loop without accelerate
with torch.autocast(device_type=device.type) if use_amp else nullcontext():
loss, output_dict = policy.forward(batch)
with torch.autocast(device_type=device.type) if use_amp else nullcontext():
loss, output_dict = policy.forward(batch)
# TODO(rcadene): policy.unnormalize_outputs(out_dict)
if grad_scaler is not None:
grad_scaler.scale(loss).backward()
# Unscale the gradient of the optimizer's assigned params in-place **prior to gradient clipping**.
grad_scaler.unscale_(optimizer)
grad_norm = torch.nn.utils.clip_grad_norm_(
policy.parameters(),
grad_clip_norm,
error_if_nonfinite=False,
)
# Optimizer's gradients are already unscaled, so scaler.step does not unscale them,
# although it still skips optimizer.step() if the gradients contain infs or NaNs.
with lock if lock is not None else nullcontext():
grad_scaler.step(optimizer)
# Updates the scale for next iteration.
grad_scaler.update()
else:
# Without GradScaler (fallback)
loss.backward()
grad_norm = torch.nn.utils.clip_grad_norm_(
policy.parameters(),
grad_clip_norm,
error_if_nonfinite=False,
)
with lock if lock is not None else nullcontext():
optimizer.step()
grad_scaler.scale(loss).backward()
optimizer.zero_grad()
# Unscale the gradient of the optimizer's assigned params in-place **prior to gradient clipping**.
grad_scaler.unscale_(optimizer)
grad_norm = torch.nn.utils.clip_grad_norm_(
policy.parameters(),
grad_clip_norm,
error_if_nonfinite=False,
)
# Optimizer's gradients are already unscaled, so scaler.step does not unscale them,
# although it still skips optimizer.step() if the gradients contain infs or NaNs.
with lock if lock is not None else nullcontext():
grad_scaler.step(optimizer)
# Updates the scale for next iteration.
grad_scaler.update()
optimizer.zero_grad()
# Step through pytorch scheduler at every batch instead of epoch
if lr_scheduler is not None:
@@ -133,7 +99,7 @@ def update_policy(
policy.update()
train_metrics.loss = loss.item()
train_metrics.grad_norm = grad_norm.item() if isinstance(grad_norm, torch.Tensor) else grad_norm
train_metrics.grad_norm = grad_norm.item()
train_metrics.lr = optimizer.param_groups[0]["lr"]
train_metrics.update_s = time.perf_counter() - start_time
return train_metrics, output_dict
@@ -142,33 +108,8 @@ def update_policy(
@parser.wrap()
def train(cfg: TrainPipelineConfig):
cfg.validate()
accelerator = None
if is_launched_with_accelerate():
import accelerate
# For example pi0 has unused params (last llm block)
from accelerate import DistributedDataParallelKwargs
ddp_kwargs = DistributedDataParallelKwargs(find_unused_parameters=True)
# accelerator = accelerate.Accelerator(step_scheduler_with_optimizer=False, kwargs_handlers=[ddp_kwargs])
from accelerate import InitProcessGroupKwargs
# Set NCCL timeout (default 30 minutes = 1800 seconds)
nccl_timeout = getattr(cfg, 'nccl_timeout', 1800)
ddp_init_kwargs = InitProcessGroupKwargs(timeout=timedelta(seconds=nccl_timeout)) # FIXME(mshukor): allow user to set timeout. This should be longer than the evaluation time
# Set gradient accumulation steps (default 1)
gradient_accumulation_steps = getattr(cfg, 'gradient_accumulation_steps', 1)
accelerator = accelerate.Accelerator(step_scheduler_with_optimizer=False, gradient_accumulation_steps=gradient_accumulation_steps, kwargs_handlers=[ddp_init_kwargs, ddp_kwargs])
if accelerator is not None and not accelerator.is_main_process:
# Disable duplicate logging on non-main processes
logging.info(f"Setting logging level on non-main process {accelerator.process_index} to WARNING.")
logging.getLogger().setLevel(logging.WARNING)
logging.info(pformat(cfg.to_dict()))
if accelerator and not accelerator.is_main_process:
# Disable logging on non-main processes.
cfg.wandb.enable = False
if cfg.wandb.enable and cfg.wandb.project:
wandb_logger = WandBLogger(cfg)
else:
@@ -202,8 +143,7 @@ def train(cfg: TrainPipelineConfig):
logging.info("Creating optimizer and scheduler")
optimizer, lr_scheduler = make_optimizer_and_scheduler(cfg, policy)
# Only use GradScaler when not using accelerate (accelerate handles mixed precision internally)
grad_scaler = None if accelerator else GradScaler(device.type, enabled=cfg.policy.use_amp)
grad_scaler = GradScaler(device.type, enabled=cfg.policy.use_amp)
step = 0 # number of policy updates (forward + backward + optim)
@@ -245,11 +185,6 @@ def train(cfg: TrainPipelineConfig):
)
dl_iter = cycle(dataloader)
# Prepare models for accelerate if using multi-GPU
if accelerator:
policy, optimizer, dataloader = accelerator.prepare(policy, optimizer, dataloader)
dl_iter = cycle(dataloader)
policy.train()
train_metrics = {
@@ -270,10 +205,9 @@ def train(cfg: TrainPipelineConfig):
batch = next(dl_iter)
train_tracker.dataloading_s = time.perf_counter() - start_time
if not accelerator:
for key in batch:
if isinstance(batch[key], torch.Tensor):
batch[key] = batch[key].to(device, non_blocking=device.type == "cuda")
for key in batch:
if isinstance(batch[key], torch.Tensor):
batch[key] = batch[key].to(device, non_blocking=device.type == "cuda")
train_tracker, output_dict = update_policy(
train_tracker,
@@ -284,7 +218,6 @@ def train(cfg: TrainPipelineConfig):
grad_scaler=grad_scaler,
lr_scheduler=lr_scheduler,
use_amp=cfg.policy.use_amp,
accelerator=accelerator,
)
# Note: eval and checkpoint happens *after* the `step`th training update has completed, so we
@@ -304,17 +237,15 @@ def train(cfg: TrainPipelineConfig):
wandb_logger.log_dict(wandb_log_dict, step)
train_tracker.reset_averages()
if cfg.save_checkpoint and is_saving_step and (not accelerator or accelerator.is_main_process):
if cfg.save_checkpoint and is_saving_step:
logging.info(f"Checkpoint policy after step {step}")
checkpoint_dir = get_step_checkpoint_dir(cfg.output_dir, cfg.steps, step)
# Unwrap model for accelerate
policy_to_save = accelerator.unwrap_model(policy) if accelerator else policy
save_checkpoint(checkpoint_dir, step, cfg, policy_to_save, optimizer, lr_scheduler)
save_checkpoint(checkpoint_dir, step, cfg, policy, optimizer, lr_scheduler)
update_last_checkpoint(checkpoint_dir)
if wandb_logger:
wandb_logger.log_policy(checkpoint_dir)
if cfg.env and is_eval_step and (not accelerator or accelerator.is_main_process):
if cfg.env and is_eval_step:
step_id = get_step_identifier(step, cfg.steps)
logging.info(f"Eval policy at step {step}")
with (
@@ -323,7 +254,7 @@ def train(cfg: TrainPipelineConfig):
):
eval_info = eval_policy(
eval_env,
accelerator.unwrap_model(policy) if accelerator else policy,
policy,
cfg.eval.n_episodes,
videos_dir=cfg.output_dir / "eval" / f"videos_step_{step_id}",
max_episodes_rendered=4,
+1 -1
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@@ -18,7 +18,7 @@ Helper to set motor ids and baudrate.
Example:
```shell
lerobot-setup-motors \
python -m lerobot.setup_motors \
--teleop.type=so100_leader \
--teleop.port=/dev/tty.usbmodem575E0031751
```
+2 -2
View File
@@ -18,7 +18,7 @@ Simple script to control a robot from teleoperation.
Example:
```shell
lerobot-teleoperate \
python -m lerobot.teleoperate \
--robot.type=so101_follower \
--robot.port=/dev/tty.usbmodem58760431541 \
--robot.cameras="{ front: {type: opencv, index_or_path: 0, width: 1920, height: 1080, fps: 30}}" \
@@ -32,7 +32,7 @@ lerobot-teleoperate \
Example teleoperation with bimanual so100:
```shell
lerobot-teleoperate \
python -m lerobot.teleoperate \
--robot.type=bi_so100_follower \
--robot.left_arm_port=/dev/tty.usbmodem5A460851411 \
--robot.right_arm_port=/dev/tty.usbmodem5A460812391 \
@@ -44,7 +44,7 @@ Below is the short version on how to train and run inference/eval:
### Train from scratch
```bash
lerobot-train \
python -m lerobot.scripts.train \
--dataset.repo_id=${HF_USER}/<dataset> \
--policy.type=act \
--output_dir=outputs/train/<desired_policy_repo_id> \
@@ -59,7 +59,7 @@ _Writes checkpoints to `outputs/train/<desired_policy_repo_id>/checkpoints/`._
### Evaluate the policy/run inference
```bash
lerobot-record \
python -m lerobot.record \
--robot.type=so100_follower \
--dataset.repo_id=<hf_user>/eval_<dataset> \
--policy.path=<hf_user>/<desired_policy_repo_id> \
+3 -2
View File
@@ -17,9 +17,10 @@ import time
def busy_wait(seconds):
if platform.system() == "Darwin" or platform.system() == "Windows":
# On Mac and Windows, `time.sleep` is not accurate and we need to use this while loop trick,
if platform.system() == "Darwin":
# On Mac, `time.sleep` is not accurate and we need to use this while loop trick,
# but it consumes CPU cycles.
# TODO(rcadene): find an alternative: from python 11, time.sleep is precise
end_time = time.perf_counter() + seconds
while time.perf_counter() < end_time:
pass
+3 -31
View File
@@ -60,39 +60,11 @@ def load_training_step(save_dir: Path) -> int:
def update_last_checkpoint(checkpoint_dir: Path) -> Path:
import fcntl
import tempfile
import os
last_checkpoint_dir = checkpoint_dir.parent / LAST_CHECKPOINT_LINK
if last_checkpoint_dir.is_symlink():
last_checkpoint_dir.unlink()
relative_target = checkpoint_dir.relative_to(checkpoint_dir.parent)
# Use file locking to prevent race conditions in multi-GPU training
lock_file = checkpoint_dir.parent / ".symlink_lock"
try:
with open(lock_file, 'w') as f:
# Get exclusive lock
fcntl.flock(f.fileno(), fcntl.LOCK_EX)
# Update symlink atomically
if last_checkpoint_dir.exists() or last_checkpoint_dir.is_symlink():
last_checkpoint_dir.unlink()
last_checkpoint_dir.symlink_to(relative_target)
except (OSError, FileExistsError) as e:
# Handle race conditions gracefully - another process may have already updated
if not last_checkpoint_dir.exists():
try:
last_checkpoint_dir.symlink_to(relative_target)
except FileExistsError:
pass # Another process created it, that's fine
finally:
# Clean up lock file
try:
lock_file.unlink()
except FileNotFoundError:
pass
last_checkpoint_dir.symlink_to(relative_target)
def save_checkpoint(
-45
View File
@@ -1,45 +0,0 @@
#!/bin/bash
echo "=== Local 1-GPU Accelerate Training Test with SmolVLA ==="
echo "Environment: multi"
echo "GPU: 1"
echo "Steps: 50 (quick local test)"
echo ""
# Activate conda environment
source /fsx/dana_aubakirova/miniconda3/etc/profile.d/conda.sh
conda activate multi
# Set CUDA environment for 1 GPU
export CUDA_VISIBLE_DEVICES=0
export PYTORCH_CUDA_ALLOC_CONF=max_split_size_mb:128,expandable_segments:True
export TORCH_DISTRIBUTED_DEBUG=OFF
export CUDA_LAUNCH_BLOCKING=0
export TRANSFORMERS_NO_ADVISORY_WARNINGS=1
# Change to working directory
cd /fsx/dana_aubakirova/vla/pr/lerobot
# Set output directory with timestamp
export OUTPUT_DIR="outputs/test_accelerate_1gpu_local_$(date +%Y%m%d_%H%M%S)"
echo "Output directory: $OUTPUT_DIR"
echo ""
# Test accelerate training with 1 GPU
accelerate launch --config_file accelerate_configs/1gpu_config.yaml -m lerobot.scripts.train \
--policy.path=lerobot/smolvla_base \
--policy.push_to_hub=false \
--dataset.repo_id=lerobot/svla_so100_sorting \
--dataset.video_backend=pyav \
--steps=50 \
--save_freq=25 \
--log_freq=5 \
--batch_size=1 \
--num_workers=0 \
--output_dir=$OUTPUT_DIR \
--wandb.enable=false
echo ""
echo "=== Training completed! ==="
echo "Check outputs in: $OUTPUT_DIR"
-67
View File
@@ -1,67 +0,0 @@
#!/bin/bash
#SBATCH --job-name=test_accelerate
#SBATCH --nodes=1
#SBATCH --ntasks-per-node=1
#SBATCH --cpus-per-task=16
#SBATCH --gres=gpu:2
#SBATCH --time=1:00:00
#SBATCH --partition=hopper-prod
#SBATCH --output=/fsx/dana_aubakirova/vla/logs/test_accelerate_%j.out
#SBATCH --error=/fsx/dana_aubakirova/vla/logs/test_accelerate_%j.err
# Create logs directory if it doesn't exist
mkdir -p /fsx/dana_aubakirova/vla/pr/lerobot/logs
# Activate conda environment
source /fsx/dana_aubakirova/miniconda3/etc/profile.d/conda.sh
conda activate multi
# 2-GPU Test CUDA environment
export CUDA_VISIBLE_DEVICES=0,1
export PYTORCH_CUDA_ALLOC_CONF=max_split_size_mb:128,expandable_segments:True
export TORCH_DISTRIBUTED_DEBUG=OFF
export NCCL_DEBUG=INFO
export CUDA_LAUNCH_BLOCKING=0
export ACCELERATE_USE_FSDP=false
export ACCELERATE_USE_DEEPSPEED=false
export HF_ACCELERATE_DEVICE_MAP=false
export TRANSFORMERS_NO_ADVISORY_WARNINGS=1
export SAFETENSORS_FAST_GPU=1
export HF_HUB_ENABLE_HF_TRANSFER=1
export PYTORCH_CUDA_ALLOC_CONF=expandable_segments:True
export ACCELERATE_TORCH_DEVICE_MAP_AUTO=false
# Change to working directory
cd /fsx/dana_aubakirova/vla/pr/lerobot
echo "=== Testing Accelerate Multi-GPU Training with SmolVLA ==="
echo "Dataset: lerobot/svla_so100_sorting"
echo "GPUs: 2"
echo "Steps: 100 (for quick test)"
echo "Job ID: $SLURM_JOB_ID"
echo ""
# Set output directory with job ID
export OUTPUT_DIR="outputs/test_accelerate_2gpu_job_${SLURM_JOB_ID}"
echo "Output directory: $OUTPUT_DIR"
echo ""
# Test accelerate training
accelerate launch --config_file accelerate_configs/2gpu_config_safe.yaml -m lerobot.scripts.train \
--policy.type=smolvla \
--policy.push_to_hub=false \
--dataset.repo_id=lerobot/svla_so100_sorting \
--dataset.video_backend=pyav \
--steps=100 \
--save_freq=50 \
--log_freq=5 \
--batch_size=2 \
--num_workers=0 \
--output_dir=$OUTPUT_DIR \
--wandb.enable=false
echo ""
echo "=== Training completed! ==="
echo "Check logs and outputs in: $OUTPUT_DIR"
echo "Job ID: $SLURM_JOB_ID"
-45
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@@ -1,45 +0,0 @@
#!/bin/bash
echo "=== Direct 1-GPU Training Test with SmolVLA (no accelerate) ==="
echo "Environment: multi"
echo "GPU: 1"
echo "Steps: 50 (quick local test)"
echo ""
# Activate conda environment
source /fsx/dana_aubakirova/miniconda3/etc/profile.d/conda.sh
conda activate multi
# Set CUDA environment for 1 GPU
export CUDA_VISIBLE_DEVICES=0
export PYTORCH_CUDA_ALLOC_CONF=max_split_size_mb:128,expandable_segments:True
export TORCH_DISTRIBUTED_DEBUG=OFF
export CUDA_LAUNCH_BLOCKING=0
export TRANSFORMERS_NO_ADVISORY_WARNINGS=1
# Change to working directory
cd /fsx/dana_aubakirova/vla/pr/lerobot
# Set output directory with timestamp
export OUTPUT_DIR="outputs/test_direct_1gpu_local_$(date +%Y%m%d_%H%M%S)"
echo "Output directory: $OUTPUT_DIR"
echo ""
# Test direct training with 1 GPU (no accelerate)
python -m lerobot.scripts.train \
--policy.path=lerobot/smolvla_base \
--policy.push_to_hub=false \
--dataset.repo_id=lerobot/svla_so100_sorting \
--dataset.video_backend=pyav \
--steps=50 \
--save_freq=25 \
--log_freq=5 \
--batch_size=1 \
--num_workers=0 \
--output_dir=$OUTPUT_DIR \
--wandb.enable=false
echo ""
echo "=== Training completed! ==="
echo "Check outputs in: $OUTPUT_DIR"
-17
View File
@@ -19,7 +19,6 @@ import traceback
import pytest
from serial import SerialException
from lerobot.configs.types import FeatureType, PolicyFeature
from tests.utils import DEVICE
# Import fixture modules as plugins
@@ -70,19 +69,3 @@ def patch_builtins_input(monkeypatch):
print(text)
monkeypatch.setattr("builtins.input", print_text)
@pytest.fixture
def policy_feature_factory():
"""PolicyFeature factory"""
def _pf(ft: FeatureType, shape: tuple[int, ...]) -> PolicyFeature:
return PolicyFeature(type=ft, shape=shape)
return _pf
def assert_contract_is_typed(features: dict[str, PolicyFeature]) -> None:
assert isinstance(features, dict)
assert all(isinstance(k, str) for k in features.keys())
assert all(isinstance(v, PolicyFeature) for v in features.values())
-50
View File
@@ -27,13 +27,11 @@ from lerobot import available_policies
from lerobot.configs.default import DatasetConfig
from lerobot.configs.train import TrainPipelineConfig
from lerobot.configs.types import FeatureType, NormalizationMode, PolicyFeature
from lerobot.constants import ACTION, OBS_STATE
from lerobot.datasets.factory import make_dataset
from lerobot.datasets.utils import cycle, dataset_to_policy_features
from lerobot.envs.factory import make_env, make_env_config
from lerobot.envs.utils import preprocess_observation
from lerobot.optim.factory import make_optimizer_and_scheduler
from lerobot.policies.act.configuration_act import ACTConfig
from lerobot.policies.act.modeling_act import ACTTemporalEnsembler
from lerobot.policies.factory import (
get_policy_class,
@@ -365,54 +363,6 @@ def test_normalize(insert_temporal_dim):
unnormalize(output_batch)
@pytest.mark.parametrize("multikey", [True, False])
def test_multikey_construction(multikey: bool):
"""
Asserts that multiple keys with type State/Action are correctly processed by the policy constructor,
preventing erroneous creation of the policy object.
"""
input_features = {
"observation.state": PolicyFeature(
type=FeatureType.STATE,
shape=(10,),
),
}
output_features = {
"action": PolicyFeature(
type=FeatureType.ACTION,
shape=(5,),
),
}
if multikey:
"""Simulates the complete state/action is constructed from more granular multiple
keys, of the same type as the overall state/action"""
input_features = {}
input_features["observation.state.subset1"] = PolicyFeature(type=FeatureType.STATE, shape=(5,))
input_features["observation.state.subset2"] = PolicyFeature(type=FeatureType.STATE, shape=(5,))
input_features["observation.state"] = PolicyFeature(type=FeatureType.STATE, shape=(10,))
output_features = {}
output_features["action.first_three_motors"] = PolicyFeature(type=FeatureType.ACTION, shape=(3,))
output_features["action.last_two_motors"] = PolicyFeature(type=FeatureType.ACTION, shape=(2,))
output_features["action"] = PolicyFeature(
type=FeatureType.ACTION,
shape=(5,),
)
config = ACTConfig(input_features=input_features, output_features=output_features)
state_condition = config.robot_state_feature == input_features[OBS_STATE]
action_condition = config.action_feature == output_features[ACTION]
assert state_condition, (
f"Discrepancy detected. Robot state feature is {config.robot_state_feature} but policy expects {input_features[OBS_STATE]}"
)
assert action_condition, (
f"Discrepancy detected. Action feature is {config.action_feature} but policy expects {output_features[ACTION]}"
)
@pytest.mark.parametrize(
"ds_repo_id, policy_name, policy_kwargs, file_name_extra",
[
-282
View File
@@ -1,282 +0,0 @@
import torch
from lerobot.processor.pipeline import (
RobotProcessor,
TransitionKey,
_default_batch_to_transition,
_default_transition_to_batch,
)
def _dummy_batch():
"""Create a dummy batch using the new format with observation.* and next.* keys."""
return {
"observation.image.left": torch.randn(1, 3, 128, 128),
"observation.image.right": torch.randn(1, 3, 128, 128),
"observation.state": torch.tensor([[0.1, 0.2, 0.3, 0.4]]),
"action": torch.tensor([[0.5]]),
"next.reward": 1.0,
"next.done": False,
"next.truncated": False,
"info": {"key": "value"},
}
def test_observation_grouping_roundtrip():
"""Test that observation.* keys are properly grouped and ungrouped."""
proc = RobotProcessor([])
batch_in = _dummy_batch()
batch_out = proc(batch_in)
# Check that all observation.* keys are preserved
original_obs_keys = {k: v for k, v in batch_in.items() if k.startswith("observation.")}
reconstructed_obs_keys = {k: v for k, v in batch_out.items() if k.startswith("observation.")}
assert set(original_obs_keys.keys()) == set(reconstructed_obs_keys.keys())
# Check tensor values
assert torch.allclose(batch_out["observation.image.left"], batch_in["observation.image.left"])
assert torch.allclose(batch_out["observation.image.right"], batch_in["observation.image.right"])
assert torch.allclose(batch_out["observation.state"], batch_in["observation.state"])
# Check other fields
assert torch.allclose(batch_out["action"], batch_in["action"])
assert batch_out["next.reward"] == batch_in["next.reward"]
assert batch_out["next.done"] == batch_in["next.done"]
assert batch_out["next.truncated"] == batch_in["next.truncated"]
assert batch_out["info"] == batch_in["info"]
def test_batch_to_transition_observation_grouping():
"""Test that _default_batch_to_transition correctly groups observation.* keys."""
batch = {
"observation.image.top": torch.randn(1, 3, 128, 128),
"observation.image.left": torch.randn(1, 3, 128, 128),
"observation.state": [1, 2, 3, 4],
"action": "action_data",
"next.reward": 1.5,
"next.done": True,
"next.truncated": False,
"info": {"episode": 42},
}
transition = _default_batch_to_transition(batch)
# Check observation is a dict with all observation.* keys
assert isinstance(transition[TransitionKey.OBSERVATION], dict)
assert "observation.image.top" in transition[TransitionKey.OBSERVATION]
assert "observation.image.left" in transition[TransitionKey.OBSERVATION]
assert "observation.state" in transition[TransitionKey.OBSERVATION]
# Check values are preserved
assert torch.allclose(
transition[TransitionKey.OBSERVATION]["observation.image.top"], batch["observation.image.top"]
)
assert torch.allclose(
transition[TransitionKey.OBSERVATION]["observation.image.left"], batch["observation.image.left"]
)
assert transition[TransitionKey.OBSERVATION]["observation.state"] == [1, 2, 3, 4]
# Check other fields
assert transition[TransitionKey.ACTION] == "action_data"
assert transition[TransitionKey.REWARD] == 1.5
assert transition[TransitionKey.DONE]
assert not transition[TransitionKey.TRUNCATED]
assert transition[TransitionKey.INFO] == {"episode": 42}
assert transition[TransitionKey.COMPLEMENTARY_DATA] == {}
def test_transition_to_batch_observation_flattening():
"""Test that _default_transition_to_batch correctly flattens observation dict."""
observation_dict = {
"observation.image.top": torch.randn(1, 3, 128, 128),
"observation.image.left": torch.randn(1, 3, 128, 128),
"observation.state": [1, 2, 3, 4],
}
transition = {
TransitionKey.OBSERVATION: observation_dict,
TransitionKey.ACTION: "action_data",
TransitionKey.REWARD: 1.5,
TransitionKey.DONE: True,
TransitionKey.TRUNCATED: False,
TransitionKey.INFO: {"episode": 42},
TransitionKey.COMPLEMENTARY_DATA: {},
}
batch = _default_transition_to_batch(transition)
# Check that observation.* keys are flattened back to batch
assert "observation.image.top" in batch
assert "observation.image.left" in batch
assert "observation.state" in batch
# Check values are preserved
assert torch.allclose(batch["observation.image.top"], observation_dict["observation.image.top"])
assert torch.allclose(batch["observation.image.left"], observation_dict["observation.image.left"])
assert batch["observation.state"] == [1, 2, 3, 4]
# Check other fields are mapped to next.* format
assert batch["action"] == "action_data"
assert batch["next.reward"] == 1.5
assert batch["next.done"]
assert not batch["next.truncated"]
assert batch["info"] == {"episode": 42}
def test_no_observation_keys():
"""Test behavior when there are no observation.* keys."""
batch = {
"action": "action_data",
"next.reward": 2.0,
"next.done": False,
"next.truncated": True,
"info": {"test": "no_obs"},
}
transition = _default_batch_to_transition(batch)
# Observation should be None when no observation.* keys
assert transition[TransitionKey.OBSERVATION] is None
# Check other fields
assert transition[TransitionKey.ACTION] == "action_data"
assert transition[TransitionKey.REWARD] == 2.0
assert not transition[TransitionKey.DONE]
assert transition[TransitionKey.TRUNCATED]
assert transition[TransitionKey.INFO] == {"test": "no_obs"}
# Round trip should work
reconstructed_batch = _default_transition_to_batch(transition)
assert reconstructed_batch["action"] == "action_data"
assert reconstructed_batch["next.reward"] == 2.0
assert not reconstructed_batch["next.done"]
assert reconstructed_batch["next.truncated"]
assert reconstructed_batch["info"] == {"test": "no_obs"}
def test_minimal_batch():
"""Test with minimal batch containing only observation.* and action."""
batch = {"observation.state": "minimal_state", "action": "minimal_action"}
transition = _default_batch_to_transition(batch)
# Check observation
assert transition[TransitionKey.OBSERVATION] == {"observation.state": "minimal_state"}
assert transition[TransitionKey.ACTION] == "minimal_action"
# Check defaults
assert transition[TransitionKey.REWARD] == 0.0
assert not transition[TransitionKey.DONE]
assert not transition[TransitionKey.TRUNCATED]
assert transition[TransitionKey.INFO] == {}
assert transition[TransitionKey.COMPLEMENTARY_DATA] == {}
# Round trip
reconstructed_batch = _default_transition_to_batch(transition)
assert reconstructed_batch["observation.state"] == "minimal_state"
assert reconstructed_batch["action"] == "minimal_action"
assert reconstructed_batch["next.reward"] == 0.0
assert not reconstructed_batch["next.done"]
assert not reconstructed_batch["next.truncated"]
assert reconstructed_batch["info"] == {}
def test_empty_batch():
"""Test behavior with empty batch."""
batch = {}
transition = _default_batch_to_transition(batch)
# All fields should have defaults
assert transition[TransitionKey.OBSERVATION] is None
assert transition[TransitionKey.ACTION] is None
assert transition[TransitionKey.REWARD] == 0.0
assert not transition[TransitionKey.DONE]
assert not transition[TransitionKey.TRUNCATED]
assert transition[TransitionKey.INFO] == {}
assert transition[TransitionKey.COMPLEMENTARY_DATA] == {}
# Round trip
reconstructed_batch = _default_transition_to_batch(transition)
assert reconstructed_batch["action"] is None
assert reconstructed_batch["next.reward"] == 0.0
assert not reconstructed_batch["next.done"]
assert not reconstructed_batch["next.truncated"]
assert reconstructed_batch["info"] == {}
def test_complex_nested_observation():
"""Test with complex nested observation data."""
batch = {
"observation.image.top": {"image": torch.randn(1, 3, 128, 128), "timestamp": 1234567890},
"observation.image.left": {"image": torch.randn(1, 3, 128, 128), "timestamp": 1234567891},
"observation.state": torch.randn(7),
"action": torch.randn(8),
"next.reward": 3.14,
"next.done": False,
"next.truncated": True,
"info": {"episode_length": 200, "success": True},
}
transition = _default_batch_to_transition(batch)
reconstructed_batch = _default_transition_to_batch(transition)
# Check that all observation keys are preserved
original_obs_keys = {k for k in batch if k.startswith("observation.")}
reconstructed_obs_keys = {k for k in reconstructed_batch if k.startswith("observation.")}
assert original_obs_keys == reconstructed_obs_keys
# Check tensor values
assert torch.allclose(batch["observation.state"], reconstructed_batch["observation.state"])
# Check nested dict with tensors
assert torch.allclose(
batch["observation.image.top"]["image"], reconstructed_batch["observation.image.top"]["image"]
)
assert torch.allclose(
batch["observation.image.left"]["image"], reconstructed_batch["observation.image.left"]["image"]
)
# Check action tensor
assert torch.allclose(batch["action"], reconstructed_batch["action"])
# Check other fields
assert batch["next.reward"] == reconstructed_batch["next.reward"]
assert batch["next.done"] == reconstructed_batch["next.done"]
assert batch["next.truncated"] == reconstructed_batch["next.truncated"]
assert batch["info"] == reconstructed_batch["info"]
def test_custom_converter():
"""Test that custom converters can still be used."""
def to_tr(batch):
# Custom converter that modifies the reward
tr = _default_batch_to_transition(batch)
# Double the reward
reward = tr.get(TransitionKey.REWARD, 0.0)
new_tr = tr.copy()
new_tr[TransitionKey.REWARD] = reward * 2 if reward is not None else 0.0
return new_tr
def to_batch(tr):
batch = _default_transition_to_batch(tr)
return batch
processor = RobotProcessor(steps=[], to_transition=to_tr, to_output=to_batch)
batch = {
"observation.state": torch.randn(1, 4),
"action": torch.randn(1, 2),
"next.reward": 1.0,
"next.done": False,
}
result = processor(batch)
# Check the reward was doubled by our custom converter
assert result["next.reward"] == 2.0
assert torch.allclose(result["observation.state"], batch["observation.state"])
assert torch.allclose(result["action"], batch["action"])
-628
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@@ -1,628 +0,0 @@
#!/usr/bin/env python
# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from unittest.mock import Mock
import numpy as np
import pytest
import torch
from lerobot.configs.types import FeatureType, NormalizationMode, PolicyFeature
from lerobot.processor.normalize_processor import (
NormalizerProcessor,
UnnormalizerProcessor,
_convert_stats_to_tensors,
)
from lerobot.processor.pipeline import RobotProcessor, TransitionKey
def create_transition(
observation=None, action=None, reward=None, done=None, truncated=None, info=None, complementary_data=None
):
"""Helper to create an EnvTransition dictionary."""
return {
TransitionKey.OBSERVATION: observation,
TransitionKey.ACTION: action,
TransitionKey.REWARD: reward,
TransitionKey.DONE: done,
TransitionKey.TRUNCATED: truncated,
TransitionKey.INFO: info,
TransitionKey.COMPLEMENTARY_DATA: complementary_data,
}
def test_numpy_conversion():
stats = {
"observation.image": {
"mean": np.array([0.5, 0.5, 0.5]),
"std": np.array([0.2, 0.2, 0.2]),
}
}
tensor_stats = _convert_stats_to_tensors(stats)
assert isinstance(tensor_stats["observation.image"]["mean"], torch.Tensor)
assert isinstance(tensor_stats["observation.image"]["std"], torch.Tensor)
assert torch.allclose(tensor_stats["observation.image"]["mean"], torch.tensor([0.5, 0.5, 0.5]))
assert torch.allclose(tensor_stats["observation.image"]["std"], torch.tensor([0.2, 0.2, 0.2]))
def test_tensor_conversion():
stats = {
"action": {
"mean": torch.tensor([0.0, 0.0]),
"std": torch.tensor([1.0, 1.0]),
}
}
tensor_stats = _convert_stats_to_tensors(stats)
assert tensor_stats["action"]["mean"].dtype == torch.float32
assert tensor_stats["action"]["std"].dtype == torch.float32
def test_scalar_conversion():
stats = {
"reward": {
"mean": 0.5,
"std": 0.1,
}
}
tensor_stats = _convert_stats_to_tensors(stats)
assert torch.allclose(tensor_stats["reward"]["mean"], torch.tensor(0.5))
assert torch.allclose(tensor_stats["reward"]["std"], torch.tensor(0.1))
def test_list_conversion():
stats = {
"observation.state": {
"min": [0.0, -1.0, -2.0],
"max": [1.0, 1.0, 2.0],
}
}
tensor_stats = _convert_stats_to_tensors(stats)
assert torch.allclose(tensor_stats["observation.state"]["min"], torch.tensor([0.0, -1.0, -2.0]))
assert torch.allclose(tensor_stats["observation.state"]["max"], torch.tensor([1.0, 1.0, 2.0]))
def test_unsupported_type():
stats = {
"bad_key": {
"mean": "string_value",
}
}
with pytest.raises(TypeError, match="Unsupported type"):
_convert_stats_to_tensors(stats)
# Helper functions to create feature maps and norm maps
def _create_observation_features():
return {
"observation.image": PolicyFeature(FeatureType.VISUAL, (3, 96, 96)),
"observation.state": PolicyFeature(FeatureType.STATE, (2,)),
}
def _create_observation_norm_map():
return {
FeatureType.VISUAL: NormalizationMode.MEAN_STD,
FeatureType.STATE: NormalizationMode.MIN_MAX,
}
# Fixtures for observation normalisation tests using NormalizerProcessor
@pytest.fixture
def observation_stats():
return {
"observation.image": {
"mean": np.array([0.5, 0.5, 0.5]),
"std": np.array([0.2, 0.2, 0.2]),
},
"observation.state": {
"min": np.array([0.0, -1.0]),
"max": np.array([1.0, 1.0]),
},
}
@pytest.fixture
def observation_normalizer(observation_stats):
"""Return a NormalizerProcessor that only has observation stats (no action)."""
features = _create_observation_features()
norm_map = _create_observation_norm_map()
return NormalizerProcessor(features=features, norm_map=norm_map, stats=observation_stats)
def test_mean_std_normalization(observation_normalizer):
observation = {
"observation.image": torch.tensor([0.7, 0.5, 0.3]),
"observation.state": torch.tensor([0.5, 0.0]),
}
transition = create_transition(observation=observation)
normalized_transition = observation_normalizer(transition)
normalized_obs = normalized_transition[TransitionKey.OBSERVATION]
# Check mean/std normalization
expected_image = (torch.tensor([0.7, 0.5, 0.3]) - 0.5) / 0.2
assert torch.allclose(normalized_obs["observation.image"], expected_image)
def test_min_max_normalization(observation_normalizer):
observation = {
"observation.state": torch.tensor([0.5, 0.0]),
}
transition = create_transition(observation=observation)
normalized_transition = observation_normalizer(transition)
normalized_obs = normalized_transition[TransitionKey.OBSERVATION]
# Check min/max normalization to [-1, 1]
# For state[0]: 2 * (0.5 - 0.0) / (1.0 - 0.0) - 1 = 0.0
# For state[1]: 2 * (0.0 - (-1.0)) / (1.0 - (-1.0)) - 1 = 0.0
expected_state = torch.tensor([0.0, 0.0])
assert torch.allclose(normalized_obs["observation.state"], expected_state, atol=1e-6)
def test_selective_normalization(observation_stats):
features = _create_observation_features()
norm_map = _create_observation_norm_map()
normalizer = NormalizerProcessor(
features=features, norm_map=norm_map, stats=observation_stats, normalize_keys={"observation.image"}
)
observation = {
"observation.image": torch.tensor([0.7, 0.5, 0.3]),
"observation.state": torch.tensor([0.5, 0.0]),
}
transition = create_transition(observation=observation)
normalized_transition = normalizer(transition)
normalized_obs = normalized_transition[TransitionKey.OBSERVATION]
# Only image should be normalized
assert torch.allclose(normalized_obs["observation.image"], (torch.tensor([0.7, 0.5, 0.3]) - 0.5) / 0.2)
# State should remain unchanged
assert torch.allclose(normalized_obs["observation.state"], observation["observation.state"])
@pytest.mark.skipif(not torch.cuda.is_available(), reason="CUDA not available")
def test_device_compatibility(observation_stats):
features = _create_observation_features()
norm_map = _create_observation_norm_map()
normalizer = NormalizerProcessor(features=features, norm_map=norm_map, stats=observation_stats)
observation = {
"observation.image": torch.tensor([0.7, 0.5, 0.3]).cuda(),
}
transition = create_transition(observation=observation)
normalized_transition = normalizer(transition)
normalized_obs = normalized_transition[TransitionKey.OBSERVATION]
assert normalized_obs["observation.image"].device.type == "cuda"
def test_from_lerobot_dataset():
# Mock dataset
mock_dataset = Mock()
mock_dataset.meta.stats = {
"observation.image": {"mean": [0.5], "std": [0.2]},
"action": {"mean": [0.0], "std": [1.0]},
}
features = {
"observation.image": PolicyFeature(FeatureType.VISUAL, (3, 96, 96)),
"action": PolicyFeature(FeatureType.ACTION, (1,)),
}
norm_map = {
FeatureType.VISUAL: NormalizationMode.MEAN_STD,
FeatureType.ACTION: NormalizationMode.MEAN_STD,
}
normalizer = NormalizerProcessor.from_lerobot_dataset(mock_dataset, features, norm_map)
# Both observation and action statistics should be present in tensor stats
assert "observation.image" in normalizer._tensor_stats
assert "action" in normalizer._tensor_stats
def test_state_dict_save_load(observation_normalizer):
# Save state
state_dict = observation_normalizer.state_dict()
# Create new normalizer and load state
features = _create_observation_features()
norm_map = _create_observation_norm_map()
new_normalizer = NormalizerProcessor(features=features, norm_map=norm_map, stats={})
new_normalizer.load_state_dict(state_dict)
# Test that it works the same
observation = {"observation.image": torch.tensor([0.7, 0.5, 0.3])}
transition = create_transition(observation=observation)
result1 = observation_normalizer(transition)[TransitionKey.OBSERVATION]
result2 = new_normalizer(transition)[TransitionKey.OBSERVATION]
assert torch.allclose(result1["observation.image"], result2["observation.image"])
# Fixtures for ActionUnnormalizer tests
@pytest.fixture
def action_stats_mean_std():
return {
"mean": np.array([0.0, 0.0, 0.0]),
"std": np.array([1.0, 2.0, 0.5]),
}
@pytest.fixture
def action_stats_min_max():
return {
"min": np.array([-1.0, -2.0, 0.0]),
"max": np.array([1.0, 2.0, 1.0]),
}
def _create_action_features():
return {
"action": PolicyFeature(FeatureType.ACTION, (3,)),
}
def _create_action_norm_map_mean_std():
return {
FeatureType.ACTION: NormalizationMode.MEAN_STD,
}
def _create_action_norm_map_min_max():
return {
FeatureType.ACTION: NormalizationMode.MIN_MAX,
}
def test_mean_std_unnormalization(action_stats_mean_std):
features = _create_action_features()
norm_map = _create_action_norm_map_mean_std()
unnormalizer = UnnormalizerProcessor(
features=features, norm_map=norm_map, stats={"action": action_stats_mean_std}
)
normalized_action = torch.tensor([1.0, -0.5, 2.0])
transition = create_transition(action=normalized_action)
unnormalized_transition = unnormalizer(transition)
unnormalized_action = unnormalized_transition[TransitionKey.ACTION]
# action * std + mean
expected = torch.tensor([1.0 * 1.0 + 0.0, -0.5 * 2.0 + 0.0, 2.0 * 0.5 + 0.0])
assert torch.allclose(unnormalized_action, expected)
def test_min_max_unnormalization(action_stats_min_max):
features = _create_action_features()
norm_map = _create_action_norm_map_min_max()
unnormalizer = UnnormalizerProcessor(
features=features, norm_map=norm_map, stats={"action": action_stats_min_max}
)
# Actions in [-1, 1]
normalized_action = torch.tensor([0.0, -1.0, 1.0])
transition = create_transition(action=normalized_action)
unnormalized_transition = unnormalizer(transition)
unnormalized_action = unnormalized_transition[TransitionKey.ACTION]
# Map from [-1, 1] to [min, max]
# (action + 1) / 2 * (max - min) + min
expected = torch.tensor(
[
(0.0 + 1) / 2 * (1.0 - (-1.0)) + (-1.0), # 0.0
(-1.0 + 1) / 2 * (2.0 - (-2.0)) + (-2.0), # -2.0
(1.0 + 1) / 2 * (1.0 - 0.0) + 0.0, # 1.0
]
)
assert torch.allclose(unnormalized_action, expected)
def test_numpy_action_input(action_stats_mean_std):
features = _create_action_features()
norm_map = _create_action_norm_map_mean_std()
unnormalizer = UnnormalizerProcessor(
features=features, norm_map=norm_map, stats={"action": action_stats_mean_std}
)
normalized_action = np.array([1.0, -0.5, 2.0], dtype=np.float32)
transition = create_transition(action=normalized_action)
unnormalized_transition = unnormalizer(transition)
unnormalized_action = unnormalized_transition[TransitionKey.ACTION]
assert isinstance(unnormalized_action, torch.Tensor)
expected = torch.tensor([1.0, -1.0, 1.0])
assert torch.allclose(unnormalized_action, expected)
def test_none_action(action_stats_mean_std):
features = _create_action_features()
norm_map = _create_action_norm_map_mean_std()
unnormalizer = UnnormalizerProcessor(
features=features, norm_map=norm_map, stats={"action": action_stats_mean_std}
)
transition = create_transition()
result = unnormalizer(transition)
# Should return transition unchanged
assert result == transition
def test_action_from_lerobot_dataset():
mock_dataset = Mock()
mock_dataset.meta.stats = {"action": {"mean": [0.0], "std": [1.0]}}
features = {"action": PolicyFeature(FeatureType.ACTION, (1,))}
norm_map = {FeatureType.ACTION: NormalizationMode.MEAN_STD}
unnormalizer = UnnormalizerProcessor.from_lerobot_dataset(mock_dataset, features, norm_map)
assert "mean" in unnormalizer._tensor_stats["action"]
# Fixtures for NormalizerProcessor tests
@pytest.fixture
def full_stats():
return {
"observation.image": {
"mean": np.array([0.5, 0.5, 0.5]),
"std": np.array([0.2, 0.2, 0.2]),
},
"observation.state": {
"min": np.array([0.0, -1.0]),
"max": np.array([1.0, 1.0]),
},
"action": {
"mean": np.array([0.0, 0.0]),
"std": np.array([1.0, 2.0]),
},
}
def _create_full_features():
return {
"observation.image": PolicyFeature(FeatureType.VISUAL, (3, 96, 96)),
"observation.state": PolicyFeature(FeatureType.STATE, (2,)),
"action": PolicyFeature(FeatureType.ACTION, (2,)),
}
def _create_full_norm_map():
return {
FeatureType.VISUAL: NormalizationMode.MEAN_STD,
FeatureType.STATE: NormalizationMode.MIN_MAX,
FeatureType.ACTION: NormalizationMode.MEAN_STD,
}
@pytest.fixture
def normalizer_processor(full_stats):
features = _create_full_features()
norm_map = _create_full_norm_map()
return NormalizerProcessor(features=features, norm_map=norm_map, stats=full_stats)
def test_combined_normalization(normalizer_processor):
observation = {
"observation.image": torch.tensor([0.7, 0.5, 0.3]),
"observation.state": torch.tensor([0.5, 0.0]),
}
action = torch.tensor([1.0, -0.5])
transition = create_transition(
observation=observation,
action=action,
reward=1.0,
done=False,
truncated=False,
info={},
complementary_data={},
)
processed_transition = normalizer_processor(transition)
# Check normalized observations
processed_obs = processed_transition[TransitionKey.OBSERVATION]
expected_image = (torch.tensor([0.7, 0.5, 0.3]) - 0.5) / 0.2
assert torch.allclose(processed_obs["observation.image"], expected_image)
# Check normalized action
processed_action = processed_transition[TransitionKey.ACTION]
expected_action = torch.tensor([(1.0 - 0.0) / 1.0, (-0.5 - 0.0) / 2.0])
assert torch.allclose(processed_action, expected_action)
# Check other fields remain unchanged
assert processed_transition[TransitionKey.REWARD] == 1.0
assert not processed_transition[TransitionKey.DONE]
def test_processor_from_lerobot_dataset(full_stats):
# Mock dataset
mock_dataset = Mock()
mock_dataset.meta.stats = full_stats
features = _create_full_features()
norm_map = _create_full_norm_map()
processor = NormalizerProcessor.from_lerobot_dataset(
mock_dataset, features, norm_map, normalize_keys={"observation.image"}
)
assert processor.normalize_keys == {"observation.image"}
assert "observation.image" in processor._tensor_stats
assert "action" in processor._tensor_stats
def test_get_config(full_stats):
features = _create_full_features()
norm_map = _create_full_norm_map()
processor = NormalizerProcessor(
features=features, norm_map=norm_map, stats=full_stats, normalize_keys={"observation.image"}, eps=1e-6
)
config = processor.get_config()
expected_config = {
"normalize_keys": ["observation.image"],
"eps": 1e-6,
"features": {
"observation.image": {"type": "VISUAL", "shape": (3, 96, 96)},
"observation.state": {"type": "STATE", "shape": (2,)},
"action": {"type": "ACTION", "shape": (2,)},
},
"norm_map": {
"VISUAL": "MEAN_STD",
"STATE": "MIN_MAX",
"ACTION": "MEAN_STD",
},
}
assert config == expected_config
def test_integration_with_robot_processor(normalizer_processor):
"""Test integration with RobotProcessor pipeline"""
robot_processor = RobotProcessor([normalizer_processor])
observation = {
"observation.image": torch.tensor([0.7, 0.5, 0.3]),
"observation.state": torch.tensor([0.5, 0.0]),
}
action = torch.tensor([1.0, -0.5])
transition = create_transition(
observation=observation,
action=action,
reward=1.0,
done=False,
truncated=False,
info={},
complementary_data={},
)
processed_transition = robot_processor(transition)
# Verify the processing worked
assert isinstance(processed_transition[TransitionKey.OBSERVATION], dict)
assert isinstance(processed_transition[TransitionKey.ACTION], torch.Tensor)
# Edge case tests
def test_empty_observation():
stats = {"observation.image": {"mean": [0.5], "std": [0.2]}}
features = {"observation.image": PolicyFeature(FeatureType.VISUAL, (3, 96, 96))}
norm_map = {FeatureType.VISUAL: NormalizationMode.MEAN_STD}
normalizer = NormalizerProcessor(features=features, norm_map=norm_map, stats=stats)
transition = create_transition()
result = normalizer(transition)
assert result == transition
def test_empty_stats():
features = {"observation.image": PolicyFeature(FeatureType.VISUAL, (3, 96, 96))}
norm_map = {FeatureType.VISUAL: NormalizationMode.MEAN_STD}
normalizer = NormalizerProcessor(features=features, norm_map=norm_map, stats={})
observation = {"observation.image": torch.tensor([0.5])}
transition = create_transition(observation=observation)
result = normalizer(transition)
# Should return observation unchanged since no stats are available
assert torch.allclose(
result[TransitionKey.OBSERVATION]["observation.image"], observation["observation.image"]
)
def test_partial_stats():
"""If statistics are incomplete, the value should pass through unchanged."""
stats = {"observation.image": {"mean": [0.5]}} # Missing std / (min,max)
features = {"observation.image": PolicyFeature(FeatureType.VISUAL, (3, 96, 96))}
norm_map = {FeatureType.VISUAL: NormalizationMode.MEAN_STD}
normalizer = NormalizerProcessor(features=features, norm_map=norm_map, stats=stats)
observation = {"observation.image": torch.tensor([0.7])}
transition = create_transition(observation=observation)
processed = normalizer(transition)[TransitionKey.OBSERVATION]
assert torch.allclose(processed["observation.image"], observation["observation.image"])
def test_missing_action_stats_no_error():
mock_dataset = Mock()
mock_dataset.meta.stats = {"observation.image": {"mean": [0.5], "std": [0.2]}}
features = {"observation.image": PolicyFeature(FeatureType.VISUAL, (3, 96, 96))}
norm_map = {FeatureType.VISUAL: NormalizationMode.MEAN_STD}
processor = UnnormalizerProcessor.from_lerobot_dataset(mock_dataset, features, norm_map)
# The tensor stats should not contain the 'action' key
assert "action" not in processor._tensor_stats
def test_serialization_roundtrip(full_stats):
"""Test that features and norm_map can be serialized and deserialized correctly."""
features = _create_full_features()
norm_map = _create_full_norm_map()
original_processor = NormalizerProcessor(
features=features, norm_map=norm_map, stats=full_stats, normalize_keys={"observation.image"}, eps=1e-6
)
# Get config (serialization)
config = original_processor.get_config()
# Create a new processor from the config (deserialization)
new_processor = NormalizerProcessor(
features=config["features"],
norm_map=config["norm_map"],
stats=full_stats,
normalize_keys=set(config["normalize_keys"]),
eps=config["eps"],
)
# Test that both processors work the same way
observation = {
"observation.image": torch.tensor([0.7, 0.5, 0.3]),
"observation.state": torch.tensor([0.5, 0.0]),
}
action = torch.tensor([1.0, -0.5])
transition = create_transition(
observation=observation,
action=action,
reward=1.0,
done=False,
truncated=False,
info={},
complementary_data={},
)
result1 = original_processor(transition)
result2 = new_processor(transition)
# Compare results
assert torch.allclose(
result1[TransitionKey.OBSERVATION]["observation.image"],
result2[TransitionKey.OBSERVATION]["observation.image"],
)
assert torch.allclose(result1[TransitionKey.ACTION], result2[TransitionKey.ACTION])
# Verify features and norm_map are correctly reconstructed
assert new_processor.features.keys() == original_processor.features.keys()
for key in new_processor.features:
assert new_processor.features[key].type == original_processor.features[key].type
assert new_processor.features[key].shape == original_processor.features[key].shape
assert new_processor.norm_map == original_processor.norm_map
@@ -1,486 +0,0 @@
#!/usr/bin/env python
# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import numpy as np
import pytest
import torch
from lerobot.configs.types import FeatureType
from lerobot.constants import OBS_ENV_STATE, OBS_IMAGE, OBS_IMAGES, OBS_STATE
from lerobot.processor import VanillaObservationProcessor
from lerobot.processor.pipeline import TransitionKey
from tests.conftest import assert_contract_is_typed
def create_transition(
observation=None, action=None, reward=None, done=None, truncated=None, info=None, complementary_data=None
):
"""Helper to create an EnvTransition dictionary."""
return {
TransitionKey.OBSERVATION: observation,
TransitionKey.ACTION: action,
TransitionKey.REWARD: reward,
TransitionKey.DONE: done,
TransitionKey.TRUNCATED: truncated,
TransitionKey.INFO: info,
TransitionKey.COMPLEMENTARY_DATA: complementary_data,
}
def test_process_single_image():
"""Test processing a single image."""
processor = VanillaObservationProcessor()
# Create a mock image (H, W, C) format, uint8
image = np.random.randint(0, 256, size=(64, 64, 3), dtype=np.uint8)
observation = {"pixels": image}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
# Check that the image was processed correctly
assert "observation.image" in processed_obs
processed_img = processed_obs["observation.image"]
# Check shape: should be (1, 3, 64, 64) - batch, channels, height, width
assert processed_img.shape == (1, 3, 64, 64)
# Check dtype and range
assert processed_img.dtype == torch.float32
assert processed_img.min() >= 0.0
assert processed_img.max() <= 1.0
def test_process_image_dict():
"""Test processing multiple images in a dictionary."""
processor = VanillaObservationProcessor()
# Create mock images
image1 = np.random.randint(0, 256, size=(32, 32, 3), dtype=np.uint8)
image2 = np.random.randint(0, 256, size=(48, 48, 3), dtype=np.uint8)
observation = {"pixels": {"camera1": image1, "camera2": image2}}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
# Check that both images were processed
assert "observation.images.camera1" in processed_obs
assert "observation.images.camera2" in processed_obs
# Check shapes
assert processed_obs["observation.images.camera1"].shape == (1, 3, 32, 32)
assert processed_obs["observation.images.camera2"].shape == (1, 3, 48, 48)
def test_process_batched_image():
"""Test processing already batched images."""
processor = VanillaObservationProcessor()
# Create a batched image (B, H, W, C)
image = np.random.randint(0, 256, size=(2, 64, 64, 3), dtype=np.uint8)
observation = {"pixels": image}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
# Check that batch dimension is preserved
assert processed_obs["observation.image"].shape == (2, 3, 64, 64)
def test_invalid_image_format():
"""Test error handling for invalid image formats."""
processor = VanillaObservationProcessor()
# Test wrong channel order (channels first)
image = np.random.randint(0, 256, size=(3, 64, 64), dtype=np.uint8)
observation = {"pixels": image}
transition = create_transition(observation=observation)
with pytest.raises(ValueError, match="Expected channel-last images"):
processor(transition)
def test_invalid_image_dtype():
"""Test error handling for invalid image dtype."""
processor = VanillaObservationProcessor()
# Test wrong dtype
image = np.random.rand(64, 64, 3).astype(np.float32)
observation = {"pixels": image}
transition = create_transition(observation=observation)
with pytest.raises(ValueError, match="Expected torch.uint8 images"):
processor(transition)
def test_no_pixels_in_observation():
"""Test processor when no pixels are in observation."""
processor = VanillaObservationProcessor()
observation = {"other_data": np.array([1, 2, 3])}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
# Should preserve other data unchanged
assert "other_data" in processed_obs
np.testing.assert_array_equal(processed_obs["other_data"], np.array([1, 2, 3]))
def test_none_observation():
"""Test processor with None observation."""
processor = VanillaObservationProcessor()
transition = create_transition()
result = processor(transition)
assert result == transition
def test_serialization_methods():
"""Test serialization methods."""
processor = VanillaObservationProcessor()
# Test get_config
config = processor.get_config()
assert isinstance(config, dict)
# Test state_dict
state = processor.state_dict()
assert isinstance(state, dict)
# Test load_state_dict (should not raise)
processor.load_state_dict(state)
# Test reset (should not raise)
processor.reset()
def test_process_environment_state():
"""Test processing environment_state."""
processor = VanillaObservationProcessor()
env_state = np.array([1.0, 2.0, 3.0], dtype=np.float32)
observation = {"environment_state": env_state}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
# Check that environment_state was renamed and processed
assert "observation.environment_state" in processed_obs
assert "environment_state" not in processed_obs
processed_state = processed_obs["observation.environment_state"]
assert processed_state.shape == (1, 3) # Batch dimension added
assert processed_state.dtype == torch.float32
torch.testing.assert_close(processed_state, torch.tensor([[1.0, 2.0, 3.0]]))
def test_process_agent_pos():
"""Test processing agent_pos."""
processor = VanillaObservationProcessor()
agent_pos = np.array([0.5, -0.5, 1.0], dtype=np.float32)
observation = {"agent_pos": agent_pos}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
# Check that agent_pos was renamed and processed
assert "observation.state" in processed_obs
assert "agent_pos" not in processed_obs
processed_state = processed_obs["observation.state"]
assert processed_state.shape == (1, 3) # Batch dimension added
assert processed_state.dtype == torch.float32
torch.testing.assert_close(processed_state, torch.tensor([[0.5, -0.5, 1.0]]))
def test_process_batched_states():
"""Test processing already batched states."""
processor = VanillaObservationProcessor()
env_state = np.array([[1.0, 2.0], [3.0, 4.0]], dtype=np.float32)
agent_pos = np.array([[0.5, -0.5], [1.0, -1.0]], dtype=np.float32)
observation = {"environment_state": env_state, "agent_pos": agent_pos}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
# Check that batch dimensions are preserved
assert processed_obs["observation.environment_state"].shape == (2, 2)
assert processed_obs["observation.state"].shape == (2, 2)
def test_process_both_states():
"""Test processing both environment_state and agent_pos."""
processor = VanillaObservationProcessor()
env_state = np.array([1.0, 2.0], dtype=np.float32)
agent_pos = np.array([0.5, -0.5], dtype=np.float32)
observation = {"environment_state": env_state, "agent_pos": agent_pos, "other_data": "keep_me"}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
# Check that both states were processed
assert "observation.environment_state" in processed_obs
assert "observation.state" in processed_obs
# Check that original keys were removed
assert "environment_state" not in processed_obs
assert "agent_pos" not in processed_obs
# Check that other data was preserved
assert processed_obs["other_data"] == "keep_me"
def test_no_states_in_observation():
"""Test processor when no states are in observation."""
processor = VanillaObservationProcessor()
observation = {"other_data": np.array([1, 2, 3])}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
# Should preserve data unchanged
np.testing.assert_array_equal(processed_obs, observation)
def test_complete_observation_processing():
"""Test processing a complete observation with both images and states."""
processor = VanillaObservationProcessor()
# Create mock data
image = np.random.randint(0, 256, size=(32, 32, 3), dtype=np.uint8)
env_state = np.array([1.0, 2.0, 3.0], dtype=np.float32)
agent_pos = np.array([0.5, -0.5, 1.0], dtype=np.float32)
observation = {
"pixels": image,
"environment_state": env_state,
"agent_pos": agent_pos,
"other_data": "preserve_me",
}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
# Check that image was processed
assert "observation.image" in processed_obs
assert processed_obs["observation.image"].shape == (1, 3, 32, 32)
# Check that states were processed
assert "observation.environment_state" in processed_obs
assert "observation.state" in processed_obs
# Check that original keys were removed
assert "pixels" not in processed_obs
assert "environment_state" not in processed_obs
assert "agent_pos" not in processed_obs
# Check that other data was preserved
assert processed_obs["other_data"] == "preserve_me"
def test_image_only_processing():
"""Test processing observation with only images."""
processor = VanillaObservationProcessor()
image = np.random.randint(0, 256, size=(64, 64, 3), dtype=np.uint8)
observation = {"pixels": image}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
assert "observation.image" in processed_obs
assert len(processed_obs) == 1
def test_state_only_processing():
"""Test processing observation with only states."""
processor = VanillaObservationProcessor()
agent_pos = np.array([1.0, 2.0], dtype=np.float32)
observation = {"agent_pos": agent_pos}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
assert "observation.state" in processed_obs
assert "agent_pos" not in processed_obs
def test_empty_observation():
"""Test processing empty observation."""
processor = VanillaObservationProcessor()
observation = {}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
assert processed_obs == {}
def test_equivalent_to_original_function():
"""Test that ObservationProcessor produces equivalent results to preprocess_observation."""
# Import the original function for comparison
from lerobot.envs.utils import preprocess_observation
processor = VanillaObservationProcessor()
# Create test data similar to what the original function expects
image = np.random.randint(0, 256, size=(64, 64, 3), dtype=np.uint8)
env_state = np.array([1.0, 2.0, 3.0], dtype=np.float32)
agent_pos = np.array([0.5, -0.5, 1.0], dtype=np.float32)
observation = {"pixels": image, "environment_state": env_state, "agent_pos": agent_pos}
# Process with original function
original_result = preprocess_observation(observation)
# Process with new processor
transition = create_transition(observation=observation)
processor_result = processor(transition)[TransitionKey.OBSERVATION]
# Compare results
assert set(original_result.keys()) == set(processor_result.keys())
for key in original_result:
torch.testing.assert_close(original_result[key], processor_result[key])
def test_equivalent_with_image_dict():
"""Test equivalence with dictionary of images."""
from lerobot.envs.utils import preprocess_observation
processor = VanillaObservationProcessor()
# Create test data with multiple cameras
image1 = np.random.randint(0, 256, size=(32, 32, 3), dtype=np.uint8)
image2 = np.random.randint(0, 256, size=(48, 48, 3), dtype=np.uint8)
agent_pos = np.array([1.0, 2.0], dtype=np.float32)
observation = {"pixels": {"cam1": image1, "cam2": image2}, "agent_pos": agent_pos}
# Process with original function
original_result = preprocess_observation(observation)
# Process with new processor
transition = create_transition(observation=observation)
processor_result = processor(transition)[TransitionKey.OBSERVATION]
# Compare results
assert set(original_result.keys()) == set(processor_result.keys())
for key in original_result:
torch.testing.assert_close(original_result[key], processor_result[key])
def test_image_processor_feature_contract_pixels_to_image(policy_feature_factory):
processor = VanillaObservationProcessor()
features = {
"pixels": policy_feature_factory(FeatureType.VISUAL, (3, 64, 64)),
"keep": policy_feature_factory(FeatureType.ENV, (1,)),
}
out = processor.feature_contract(features.copy())
assert OBS_IMAGE in out and out[OBS_IMAGE] == features["pixels"]
assert "pixels" not in out
assert out["keep"] == features["keep"]
assert_contract_is_typed(out)
def test_image_processor_feature_contract_observation_pixels_to_image(policy_feature_factory):
processor = VanillaObservationProcessor()
features = {
"observation.pixels": policy_feature_factory(FeatureType.VISUAL, (3, 64, 64)),
"keep": policy_feature_factory(FeatureType.ENV, (1,)),
}
out = processor.feature_contract(features.copy())
assert OBS_IMAGE in out and out[OBS_IMAGE] == features["observation.pixels"]
assert "observation.pixels" not in out
assert out["keep"] == features["keep"]
assert_contract_is_typed(out)
def test_image_processor_feature_contract_multi_camera_and_prefixed(policy_feature_factory):
processor = VanillaObservationProcessor()
features = {
"pixels.front": policy_feature_factory(FeatureType.VISUAL, (3, 64, 64)),
"pixels.wrist": policy_feature_factory(FeatureType.VISUAL, (3, 64, 64)),
"observation.pixels.rear": policy_feature_factory(FeatureType.VISUAL, (3, 64, 64)),
"keep": policy_feature_factory(FeatureType.ENV, (7,)),
}
out = processor.feature_contract(features.copy())
assert f"{OBS_IMAGES}.front" in out and out[f"{OBS_IMAGES}.front"] == features["pixels.front"]
assert f"{OBS_IMAGES}.wrist" in out and out[f"{OBS_IMAGES}.wrist"] == features["pixels.wrist"]
assert f"{OBS_IMAGES}.rear" in out and out[f"{OBS_IMAGES}.rear"] == features["observation.pixels.rear"]
assert "pixels.front" not in out and "pixels.wrist" not in out and "observation.pixels.rear" not in out
assert out["keep"] == features["keep"]
assert_contract_is_typed(out)
def test_state_processor_feature_contract_environment_and_agent_pos(policy_feature_factory):
processor = VanillaObservationProcessor()
features = {
"environment_state": policy_feature_factory(FeatureType.STATE, (3,)),
"agent_pos": policy_feature_factory(FeatureType.STATE, (7,)),
"keep": policy_feature_factory(FeatureType.ENV, (1,)),
}
out = processor.feature_contract(features.copy())
assert OBS_ENV_STATE in out and out[OBS_ENV_STATE] == features["environment_state"]
assert OBS_STATE in out and out[OBS_STATE] == features["agent_pos"]
assert "environment_state" not in out and "agent_pos" not in out
assert out["keep"] == features["keep"]
assert_contract_is_typed(out)
def test_state_processor_feature_contract_prefixed_inputs(policy_feature_factory):
proc = VanillaObservationProcessor()
features = {
"observation.environment_state": policy_feature_factory(FeatureType.STATE, (2,)),
"observation.agent_pos": policy_feature_factory(FeatureType.STATE, (4,)),
}
out = proc.feature_contract(features.copy())
assert OBS_ENV_STATE in out and out[OBS_ENV_STATE] == features["observation.environment_state"]
assert OBS_STATE in out and out[OBS_STATE] == features["observation.agent_pos"]
assert "environment_state" not in out and "agent_pos" not in out
assert_contract_is_typed(out)
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#!/usr/bin/env python
# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import tempfile
from pathlib import Path
import numpy as np
import torch
from lerobot.configs.types import FeatureType
from lerobot.processor import ProcessorStepRegistry, RenameProcessor, RobotProcessor, TransitionKey
from tests.conftest import assert_contract_is_typed
def create_transition(
observation=None, action=None, reward=None, done=None, truncated=None, info=None, complementary_data=None
):
"""Helper to create an EnvTransition dictionary."""
return {
TransitionKey.OBSERVATION: observation,
TransitionKey.ACTION: action,
TransitionKey.REWARD: reward,
TransitionKey.DONE: done,
TransitionKey.TRUNCATED: truncated,
TransitionKey.INFO: info,
TransitionKey.COMPLEMENTARY_DATA: complementary_data,
}
def test_basic_renaming():
"""Test basic key renaming functionality."""
rename_map = {
"old_key1": "new_key1",
"old_key2": "new_key2",
}
processor = RenameProcessor(rename_map=rename_map)
observation = {
"old_key1": torch.tensor([1.0, 2.0]),
"old_key2": np.array([3.0, 4.0]),
"unchanged_key": "keep_me",
}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
# Check renamed keys
assert "new_key1" in processed_obs
assert "new_key2" in processed_obs
assert "old_key1" not in processed_obs
assert "old_key2" not in processed_obs
# Check values are preserved
torch.testing.assert_close(processed_obs["new_key1"], torch.tensor([1.0, 2.0]))
np.testing.assert_array_equal(processed_obs["new_key2"], np.array([3.0, 4.0]))
# Check unchanged key is preserved
assert processed_obs["unchanged_key"] == "keep_me"
def test_empty_rename_map():
"""Test processor with empty rename map (should pass through unchanged)."""
processor = RenameProcessor(rename_map={})
observation = {
"key1": torch.tensor([1.0]),
"key2": "value2",
}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
# All keys should be unchanged
assert processed_obs.keys() == observation.keys()
torch.testing.assert_close(processed_obs["key1"], observation["key1"])
assert processed_obs["key2"] == observation["key2"]
def test_none_observation():
"""Test processor with None observation."""
processor = RenameProcessor(rename_map={"old": "new"})
transition = create_transition()
result = processor(transition)
# Should return transition unchanged
assert result == transition
def test_overlapping_rename():
"""Test renaming when new names might conflict."""
rename_map = {
"a": "b",
"b": "c", # This creates a potential conflict
}
processor = RenameProcessor(rename_map=rename_map)
observation = {
"a": 1,
"b": 2,
"x": 3,
}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
# Check that renaming happens correctly
assert "a" not in processed_obs
assert processed_obs["b"] == 1 # 'a' renamed to 'b'
assert processed_obs["c"] == 2 # original 'b' renamed to 'c'
assert processed_obs["x"] == 3
def test_partial_rename():
"""Test renaming only some keys."""
rename_map = {
"observation.state": "observation.proprio_state",
"pixels": "observation.image",
}
processor = RenameProcessor(rename_map=rename_map)
observation = {
"observation.state": torch.randn(10),
"pixels": np.random.randint(0, 256, (64, 64, 3), dtype=np.uint8),
"reward": 1.0,
"info": {"episode": 1},
}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
# Check renamed keys
assert "observation.proprio_state" in processed_obs
assert "observation.image" in processed_obs
assert "observation.state" not in processed_obs
assert "pixels" not in processed_obs
# Check unchanged keys
assert processed_obs["reward"] == 1.0
assert processed_obs["info"] == {"episode": 1}
def test_get_config():
"""Test configuration serialization."""
rename_map = {
"old1": "new1",
"old2": "new2",
}
processor = RenameProcessor(rename_map=rename_map)
config = processor.get_config()
assert config == {"rename_map": rename_map}
def test_state_dict():
"""Test state dict (should be empty for RenameProcessor)."""
processor = RenameProcessor(rename_map={"old": "new"})
state = processor.state_dict()
assert state == {}
# Load state dict should work even with empty dict
processor.load_state_dict({})
def test_integration_with_robot_processor():
"""Test integration with RobotProcessor pipeline."""
rename_map = {
"agent_pos": "observation.state",
"pixels": "observation.image",
}
rename_processor = RenameProcessor(rename_map=rename_map)
pipeline = RobotProcessor([rename_processor])
observation = {
"agent_pos": np.array([1.0, 2.0, 3.0]),
"pixels": np.zeros((32, 32, 3), dtype=np.uint8),
"other_data": "preserve_me",
}
transition = create_transition(
observation=observation, reward=0.5, done=False, truncated=False, info={}, complementary_data={}
)
result = pipeline(transition)
processed_obs = result[TransitionKey.OBSERVATION]
# Check renaming worked through pipeline
assert "observation.state" in processed_obs
assert "observation.image" in processed_obs
assert "agent_pos" not in processed_obs
assert "pixels" not in processed_obs
assert processed_obs["other_data"] == "preserve_me"
# Check other transition elements unchanged
assert result[TransitionKey.REWARD] == 0.5
assert result[TransitionKey.DONE] is False
def test_save_and_load_pretrained():
"""Test saving and loading processor with RobotProcessor."""
rename_map = {
"old_state": "observation.state",
"old_image": "observation.image",
}
processor = RenameProcessor(rename_map=rename_map)
pipeline = RobotProcessor([processor], name="TestRenameProcessor")
with tempfile.TemporaryDirectory() as tmp_dir:
# Save pipeline
pipeline.save_pretrained(tmp_dir)
# Check files were created
config_path = Path(tmp_dir) / "testrenameprocessor.json" # Based on name="TestRenameProcessor"
assert config_path.exists()
# No state files should be created for RenameProcessor
state_files = list(Path(tmp_dir).glob("*.safetensors"))
assert len(state_files) == 0
# Load pipeline
loaded_pipeline = RobotProcessor.from_pretrained(tmp_dir)
assert loaded_pipeline.name == "TestRenameProcessor"
assert len(loaded_pipeline) == 1
# Check that loaded processor works correctly
loaded_processor = loaded_pipeline.steps[0]
assert isinstance(loaded_processor, RenameProcessor)
assert loaded_processor.rename_map == rename_map
# Test functionality after loading
observation = {"old_state": [1, 2, 3], "old_image": "image_data"}
transition = create_transition(observation=observation)
result = loaded_pipeline(transition)
processed_obs = result[TransitionKey.OBSERVATION]
assert "observation.state" in processed_obs
assert "observation.image" in processed_obs
assert processed_obs["observation.state"] == [1, 2, 3]
assert processed_obs["observation.image"] == "image_data"
def test_registry_functionality():
"""Test that RenameProcessor is properly registered."""
# Check that it's registered
assert "rename_processor" in ProcessorStepRegistry.list()
# Get from registry
retrieved_class = ProcessorStepRegistry.get("rename_processor")
assert retrieved_class is RenameProcessor
# Create instance from registry
instance = retrieved_class(rename_map={"old": "new"})
assert isinstance(instance, RenameProcessor)
assert instance.rename_map == {"old": "new"}
def test_registry_based_save_load():
"""Test save/load using registry name instead of module path."""
processor = RenameProcessor(rename_map={"key1": "renamed_key1"})
pipeline = RobotProcessor([processor])
with tempfile.TemporaryDirectory() as tmp_dir:
# Save and load
pipeline.save_pretrained(tmp_dir)
# Verify config uses registry name
import json
with open(Path(tmp_dir) / "robotprocessor.json") as f: # Default name is "RobotProcessor"
config = json.load(f)
assert "registry_name" in config["steps"][0]
assert config["steps"][0]["registry_name"] == "rename_processor"
assert "class" not in config["steps"][0] # Should use registry, not module path
# Load should work
loaded_pipeline = RobotProcessor.from_pretrained(tmp_dir)
loaded_processor = loaded_pipeline.steps[0]
assert isinstance(loaded_processor, RenameProcessor)
assert loaded_processor.rename_map == {"key1": "renamed_key1"}
def test_chained_rename_processors():
"""Test multiple RenameProcessors in a pipeline."""
# First processor: rename raw keys to intermediate format
processor1 = RenameProcessor(
rename_map={
"pos": "agent_position",
"img": "camera_image",
}
)
# Second processor: rename to final format
processor2 = RenameProcessor(
rename_map={
"agent_position": "observation.state",
"camera_image": "observation.image",
}
)
pipeline = RobotProcessor([processor1, processor2])
observation = {
"pos": np.array([1.0, 2.0]),
"img": "image_data",
"extra": "keep_me",
}
transition = create_transition(observation=observation)
# Step through to see intermediate results
results = list(pipeline.step_through(transition))
# After first processor
assert "agent_position" in results[1][TransitionKey.OBSERVATION]
assert "camera_image" in results[1][TransitionKey.OBSERVATION]
# After second processor
final_obs = results[2][TransitionKey.OBSERVATION]
assert "observation.state" in final_obs
assert "observation.image" in final_obs
assert final_obs["extra"] == "keep_me"
# Original keys should be gone
assert "pos" not in final_obs
assert "img" not in final_obs
assert "agent_position" not in final_obs
assert "camera_image" not in final_obs
def test_nested_observation_rename():
"""Test renaming with nested observation structures."""
rename_map = {
"observation.images.left": "observation.camera.left_view",
"observation.images.right": "observation.camera.right_view",
"observation.proprio": "observation.proprioception",
}
processor = RenameProcessor(rename_map=rename_map)
observation = {
"observation.images.left": torch.randn(3, 64, 64),
"observation.images.right": torch.randn(3, 64, 64),
"observation.proprio": torch.randn(7),
"observation.gripper": torch.tensor([0.0]), # Not renamed
}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
# Check renames
assert "observation.camera.left_view" in processed_obs
assert "observation.camera.right_view" in processed_obs
assert "observation.proprioception" in processed_obs
# Check unchanged key
assert "observation.gripper" in processed_obs
# Check old keys removed
assert "observation.images.left" not in processed_obs
assert "observation.images.right" not in processed_obs
assert "observation.proprio" not in processed_obs
def test_value_types_preserved():
"""Test that various value types are preserved during renaming."""
rename_map = {"old_tensor": "new_tensor", "old_array": "new_array", "old_scalar": "new_scalar"}
processor = RenameProcessor(rename_map=rename_map)
tensor_value = torch.randn(3, 3)
array_value = np.random.rand(2, 2)
observation = {
"old_tensor": tensor_value,
"old_array": array_value,
"old_scalar": 42,
"old_string": "hello",
"old_dict": {"nested": "value"},
"old_list": [1, 2, 3],
}
transition = create_transition(observation=observation)
result = processor(transition)
processed_obs = result[TransitionKey.OBSERVATION]
# Check that values and types are preserved
assert torch.equal(processed_obs["new_tensor"], tensor_value)
assert np.array_equal(processed_obs["new_array"], array_value)
assert processed_obs["new_scalar"] == 42
assert processed_obs["old_string"] == "hello"
assert processed_obs["old_dict"] == {"nested": "value"}
assert processed_obs["old_list"] == [1, 2, 3]
def test_feature_contract_basic_renaming(policy_feature_factory):
processor = RenameProcessor(rename_map={"a": "x", "b": "y"})
features = {
"a": policy_feature_factory(FeatureType.STATE, (2,)),
"b": policy_feature_factory(FeatureType.ACTION, (3,)),
"c": policy_feature_factory(FeatureType.ENV, (1,)),
}
out = processor.feature_contract(features.copy())
# Values preserved and typed
assert out["x"] == features["a"]
assert out["y"] == features["b"]
assert out["c"] == features["c"]
assert_contract_is_typed(out)
# Input not mutated
assert set(features) == {"a", "b", "c"}
def test_feature_contract_overlapping_keys(policy_feature_factory):
# Overlapping renames: both 'a' and 'b' exist. 'a'->'b', 'b'->'c'
processor = RenameProcessor(rename_map={"a": "b", "b": "c"})
features = {
"a": policy_feature_factory(FeatureType.STATE, (1,)),
"b": policy_feature_factory(FeatureType.STATE, (2,)),
}
out = processor.feature_contract(features)
assert set(out) == {"b", "c"}
assert out["b"] == features["a"] # 'a' renamed to'b'
assert out["c"] == features["b"] # 'b' renamed to 'c'
assert_contract_is_typed(out)
def test_feature_contract_chained_processors(policy_feature_factory):
# Chain two rename processors at the contract level
processor1 = RenameProcessor(rename_map={"pos": "agent_position", "img": "camera_image"})
processor2 = RenameProcessor(
rename_map={"agent_position": "observation.state", "camera_image": "observation.image"}
)
pipeline = RobotProcessor([processor1, processor2])
spec = {
"pos": policy_feature_factory(FeatureType.STATE, (7,)),
"img": policy_feature_factory(FeatureType.VISUAL, (3, 64, 64)),
"extra": policy_feature_factory(FeatureType.ENV, (1,)),
}
out = pipeline.feature_contract(initial_features=spec)
assert set(out) == {"observation.state", "observation.image", "extra"}
assert out["observation.state"] == spec["pos"]
assert out["observation.image"] == spec["img"]
assert out["extra"] == spec["extra"]
assert_contract_is_typed(out)