(TXT) __init__.py
 (TXT) _pkgutil.py
 (TXT) backwardcompat.py
 (TXT) basecommand.py
 (TXT) baseparser.py
 (DIR) commands
 (TXT) download.py
 (TXT) exceptions.py
 (TXT) index.py
 (TXT) locations.py
 (TXT) log.py
 (TXT) req.py
 (TXT) runner.py
 (TXT) util.py
 (DIR) vcs
 (TXT) venv.py