问题
Same problem as in this question sys.path different in Jupyter and Python - how to import own modules in Jupyter?. In pure Python, it prepends my system environment variable PYTHONPATH to sys.path but Jupyter notebook doesn't, so I can't import my own module.
There are many similar questions asked on SO, and the solution is to directly manipulate sys.path in the script.
Is there a way to make Jupyter notebook use my system PYTHONPATH variable, as in pure python?
回答1:
Jupyter uses its own JUPYTER_PATH environment variable.
回答2:
--Just chiming in here since the accepted answer didn't give the complete solution--
You can add the path to your modules to the JUPYTER_PATH environment variable, just the same as you would for modifying the PYTHONPATH environment variable:
export JUPYTER_PATH="${JUPYTER_PATH}:/path/to/add/here/"
If you're on a Mac or other Unix system, you would just drop the above line into your ~/.bash_profile
Hint: make sure you run source ~/.bash_profile to enact the changes and close and restart your jupyter notebook.
回答3:
JupyterLab reuses the PYTHONPATH on Linux, so I created a file like
#!/bin/bash
# add your path
export PYTHONPATH="$PYTHONPATH:/opt/your/path"
# start JupyterLab using an environment
/opt/anaconda/envs/MY_ENVIRONMENT/bin/jupyter-lab
saved it as start_my_jupyterlab, make it executeable with chmod a+x start_my_jupyterlab and run it on the shell with start_my_jupyterlab.
来源：https://stackoverflow.com/questions/43985787/how-to-make-jupyter-notebook-use-pythonpath-in-system-variables-without-hacking