shell like main loop

python-shell-sample.py

# -*- coding: utf-8 -*-
import sys

def call_command(name, *args):
  """
  call method from command module.

  command class have run method.
  """
  command = import_subcommand(name)
  cmd = command(args)
  cmd.run()

def import_subcommand(name):
  """
  dynamic import a subcommand module from commands dir.
  """
  __import__("commands.%s" % name)
  return sys.modules[name]

if __name__ == '__main__':
  """
    main loop
  """
  while 1:
    input = raw_input("> ")
    if input:
      name = input.split(' ')[0]
      args = input.split(' ')[1:]
      try:
        call_command(name, args)
      except Exception, msg:
        print msg

# vim: fenc=utf8 et sw=2 ts=2