How to use the kernel version of python or pip when execute with exclamation mark in notebook

JupyterLab
,
1

I have multiple virtual environment and corresponding kernels. And when i try to call python from the notebook with !python xxxx.py or pip install xxx , i realized that the python or pip is the one that starts the Jupyter Server, not the kernel one.

So is there a way to use the kernel version of python or pip when using in notebook with !pip or !python ?

Thanks.

2

There is a pip magic, so you can use %pip install to always get the right version for the current interpreter. The other way, which works for any Python entrypoint, is to use variable expansion with {sys.executable}:

import sys
!{sys.executable} -m pip install ...

which will expand to !/path/to/kernel/bin/python -m ...

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3

I would have steered you towards using %run xxxx.py magic in a cell instead of !python xxxx.py. I find that has better features in relating feedback/linking to the notebook output format. I usually describe it as more feature-rich than the !python. See details here.

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4

Thanks minrk, good way to solve this.