pip-freeze

List installed packages in requirements format. More information: https://pip.pypa.io/en/stable/cli/pip_freeze.

• List installed packages:

pip freeze

• List installed packages and write it to the requirements.txt file:

pip freeze > requirements.txt

• List installed packages in a virtual environment, excluding globally installed packages:

pip freeze {{[-l|--local]}} > requirements.txt

• List installed packages in the user-site:

pip freeze --user > requirements.txt

• List all packages, including pip, distribute, setuptools, and wheel (they are skipped by default):

pip freeze --all > requirements.txt