Jupyter and Conda setup
These are my notes to myself about how to setup jupyter+conda/mamba environments.
Use micromamba instead of conda
Mamba is hugely faster than conda. Use minimamba installed with brew.
Put this in the
~/.condarc (which mamba obeys too):
channel_priority: strict channels: - conda-forge
Useful commands I always forget
Note I’ve added
-y to these commands to skip the confirmation dialog.
Create env on command line:
mamba create -c conda-forge -n envname python=3.11 other_package ...
Create env from file:
mamba env create -y -f file.yaml
Remove env by name:
mamba env remove -y -n envname
Export only manually installed packages to file:
mamba env export --from-history
jupyter_env.yaml file (so that you can tear it down and rebuild it when everything explodes). Install that.
name: jupyter channels: - conda-forge dependencies: - python=3.11 - jupyterlab - nb_conda_kernels # This makes conda envs visible to jupyterlab - jupyterlab_widgets # Makes ipywidgets work in jupyterlab
(making mamba kernels visible)[https://github.com/Anaconda-Platform/nb_conda_kernels]
(making ipywidgets work)[https://ipywidgets.readthedocs.io/en/latest/user_install.html#installing-the-jupyterlab-extension]
Can get a env yaml with
conda env export --from-history
To make other environments visible to the jupyter lab instance and make ipqidgets work (i.e for tqdm progress bars) you need two extra packags:
name: child channels: - conda-forge dependencies: - python=3.11 - ipywidgets # The child to jupyterlab_widgets - ipykernel # The child to nb_conda_kernels