code: def expand_star(mod_name):
      
      expanded = []
      mod_dir = os.path.dirname(
          __import__(mod_name[:-2], {}, {}, ['']).__file__)
      for f in glob.glob1(mod_dir, "[!_]*.py"):
          expanded.append('%s.%s' % (mod_name[:-2], f[:-3]))
      return expanded
docs: Expand something like 'unuk.tasks.*' into a list of all the modules
      there.