py3clean --version (return code: 0)
py3clean 3.5.1-3
py3clean --help (return code: 0)
Usage: py3clean [-V VERSION] [-p PACKAGE] [DIR_OR_FILE]
Options:
--version show program's version number and exit
-h, --help show this help message and exit
-v, --verbose turn verbose mode on
-q, --quiet be quiet
-p PACKAGE, --package=PACKAGE
specify Debian package name to clean
-V VERSION specify Python version to clean