How do I find out my PYTHONPATH using Python?

Question

How do I find out which directories are listed in my system’s PYTHONPATH variable, from within a Python script (or the interactive shell)?

Answer 1

You would probably also want this:

import sys print(sys.path) 

Or as a one liner from the terminal:

python -c "import sys; print('\n'.join(sys.path))" 

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Caveat: If you have multiple versions of Python installed you should use a corresponding command python2 or python3.

Answer 2

sys.path might include items that aren't specifically in your PYTHONPATH environment variable. To query the variable directly, use:

import os try:     user_paths = os.environ['PYTHONPATH'].split(os.pathsep) except KeyError:     user_paths = []