I quarantined my environment with virtualenv, but I get a lot of packages with pip list

problem

I isolated the environment with virtualenv, direnv, etc.

pip list

Will bring up a large number of packages (= system pip installed packages).

solution

In this case, PYTHONPATH contained /usr/lib/python2.7/dist-packages. In other words, even pips isolated by direnv and virtualenv are affected by environment variables, so

echo $PYTHONPATH

You can check if there is a strange path by executing. Is a lesson

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