Updates an IPython or IRKernel kernel spec (i.e., kernel.json file) to activate a conda environment before launching the kernel process.
- bash (i.e., does not yet work for kernels on Windows)
pip install kernda
usage: kernda [-h] [--display-name DISPLAY_NAME] [--overwrite]
[--env-dir ENV_DIR]
kernel.json
positional arguments:
kernel.json Path to a kernel spec
optional arguments:
-h, --help show this help message and exit
--display-name DISPLAY_NAME
New display name for the kernel (default: keep the
original)
--overwrite, -o Overwrite the existing kernel spec (default: False,
print to stdout
--env-dir ENV_DIR Path to the conda environment that should activate
(default: prefix path to the kernel in the existing
kernel spec file)
# modify the kernel spec in place so that it activates the conda
# environment containing the kernel binary
kernda ~/.local/share/jupyter/kernels/my_kernel/kernel.json -o
# print the modified kernel spec to stdout and redirect it
# to a new file
kernda /usr/local/share/jupyter/kernels/my_kernel/kernel.json > other_kernel.json
# modify the kernel spec in place so that it activates the
# specified conda environment
kernda ~/some_kernel.json -o --env-dir ~/envs/my_env