pip-freeze

List installed packages in requirements format.

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 --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