How to freeze packages installed only in the virtual environment?

Question

How to freeze packages installed only in the virtual environment, that is, without the global ones?

Answer 1

Only local packages on virtual environment

pip freeze -l > requirements.txt # or --local instead of -l

Only local packages installed by the user on virtual environment

pip freeze --user > requirements.txt

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See the documentation for further details: https://pip.pypa.io/en/stable/reference/pip_freeze/.