Nothing too much this time. Just finished struggling through the process of getting MuJoCo and mujoco-py working in Google Colab and thought it would be nice to share. All you have to do is add the following mess of code as a cell to the top of your notebook!

MuJoCo 2.1 working in Google Colab for OpenAI gym. Just add this as a code block near the top of your notebook to get MuJoCo setup.

File: google-colab-mujoco-py-setup.py ------------------------- #Include this at the top of your colab code import os if not os.path.exists('.mujoco_setup_complete'): # Get the prereqs !apt-get -qq update !apt-get -qq install -y libosmesa6-dev libgl1-mesa-glx libglfw3 libgl1-mesa-dev libglew-dev patchelf # Get Mujoco !mkdir ~/.mujoco !wget -q https://mujoco.org/download/mujoco210-linux-x86_64.tar.gz -O mujoco.tar.gz !tar -zxf mujoco.tar.gz -C "$HOME/.mujoco" !rm mujoco.tar.gz # Add it to the actively loaded path and the bashrc path (these only do so much) os.environ['LD_LIBRARY_PATH']=os.environ['LD_LIBRARY_PATH'] + ':/root/.mujoco/mujoco210/bin' os.environ['LD_PRELOAD']=os.environ['LD_PRELOAD'] + ':/usr/lib/x86_64-linux-gnu/libGLEW.so' !echo 'export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$HOME/.mujoco/mujoco210/bin' >> ~/.bashrc !echo 'export LD_PRELOAD=$LD_PRELOAD:/usr/lib/x86_64-linux-gnu/libGLEW.so' >> ~/.bashrc # THE ANNOYING ONE, FORCE IT INTO LDCONFIG SO WE ACTUALLY GET ACCESS TO IT THIS SESSION !echo "/root/.mujoco/mujoco210/bin" > /etc/ld.so.conf.d/mujoco_ld_lib_path.conf !ldconfig # Install Mujoco-py !pip3 install -U 'mujoco-py<2.2,>=2.1' # presetup so we don't see output on first env initialization import mujoco_py # run once !touch .mujoco_setup_complete

*If there are any issues with formatting, I’ll fix them in a few days. This was written on a different system from usual.