Producing import graphs listing all imported names
==================================================

findimports can produce a detailed list of all imported names

    >>> from findimports import main
    >>> exitcode = main(['findimports', '--names', sample_tree])
    apple:
      os
      os.path
      sys
      sys
    box.__init__:
    <BLANKLINE>
    box.cat:
      gc
      box.yarn
      decoy
    box.decoy:
    <BLANKLINE>
    box.yarn:
    <BLANKLINE>
    decoy:
    <BLANKLINE>
    orange:
      gc

This is incompatible with --collapse and probably some of the other graph
simplicitation options.

    >>> from findimports import main
    >>> exitcode = main(['findimports', '-n', '-c', sample_tree])
    usage: findimports [action] [options] [filename|dirname ...]
    findimports: error: only one of -c and -n can be provided

