| import os | |
| import sys | |
| # Remove '' and current working directory from the first entry | |
| # of sys.path, if present to avoid using current directory | |
| # in pip commands check, freeze, install, list and show, | |
| # when invoked as python -m pip <command> | |
| if sys.path[0] in ("", os.getcwd()): | |
| sys.path.pop(0) | |
| # If we are running from a wheel, add the wheel to sys.path | |
| # This allows the usage python pip-*.whl/pip install pip-*.whl | |
| if __package__ == "": | |
| # __file__ is pip-*.whl/pip/__main__.py | |
| # first dirname call strips of '/__main__.py', second strips off '/pip' | |
| # Resulting path is the name of the wheel itself | |
| # Add that to sys.path so we can import pip | |
| path = os.path.dirname(os.path.dirname(__file__)) | |
| sys.path.insert(0, path) | |
| if __name__ == "__main__": | |
| from pip._internal.cli.main import main as _main | |
| sys.exit(_main()) | |