How do I find out my PYTHONPATH using Python?

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))”

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

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 = []

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