Python docopt works OK for simple cases, but in this case it keeps saying -c requires argument, despite it having an argument. Minimal code (Python 3.6): '''Usage: test_docopt.py x YYY ZZZ [-a AAA] ...
docopt is a command-line interface tool. * [GitHub link](https://github.com/docopt/docopt) * [PyPi link](https://pypi.python.org/pypi/docopt) * [Docs](http://docopt ...