# pip > Python package manager. > More information: . - Install a package: `pip install {{package_name}}` - Install a specific version of a package: `pip install {{package_name}}=={{package_version}}` - Upgrade a package: `pip install -U {{package_name}}` - Uninstall a package: `pip uninstall {{package_name}}` - Save installed packages to file: `pip freeze > {{requirements.txt}}` - Install packages from file: `pip install -r {{requirements.txt}}` - Show installed package info: `pip show {{package_name}}`