Packages Manager pip
Package source: https://pypi.org/
pip install <package-name>
pip install -U <package-name> # Upgrade
pip install <package-name>==2.28.1
pip show <package-name>
pip install -r requirement.txt
Package source: https://pypi.org/
pip install <package-name>
pip install -U <package-name> # Upgrade
pip install <package-name>==2.28.1
pip show <package-name>
pip install -r requirement.txt