feat(python): complete with *.zip

Zips containing __main__.py can be run since Python 2.6.

https://docs.python.org/3/library/zipapp.html#the-python-zip-application-archive-format

Author: scop

completions/python

@@ -65,7 +65,7 @@ _python()
     if [[ ${words[*]::cword} == *\ -[cm]\ * ]]; then
         _filedir
     elif [[ $cur != -* ]]; then
-        _filedir 'py?([cowz])'
+        _filedir '@(py?([cowz])|zip)'
     else
         COMPREPLY=($(compgen -W '$(_parse_help "$1" -h)' -- "$cur"))
     fi