Description

The original docopt, used by pydap, was long abandoned. docopt-ng, a forked of the original, is widely used and gets periodically maintained. Some months ago I replaced docopt for docopt-ng as a dependency, and it worked great as a replacement.

issue

docopt-ng is only pip-installable and is NOT available on conda. This means that if we want to make a new release of pydap to be conda/mamba installable, we need to either

a) convince docopt-ng maintainers to make it available on conda
b) drop docopt-ng as a dependency.

solution

I ran

grep -rnw src/pydap -e docopt

(docopt means docopt-ng) to inspect how/where docopt-ng is being used. Ther esults were:

src/pydap/wsgi/app.py:26:from docopt import docopt
src/pydap/wsgi/app.py:283:    arguments = docopt(__doc__, version="pydap %s" % __version__)

This is easily replaceable. Since docopt is simply used by the app to interpret/parse arguments defined at the command line. We can replace it with argparse, which already is part of the Python standard library.