[docs] [issue9938] Documentation for argparse interactive use

Jay T report at bugs.python.org
Fri Sep 24 16:31:30 CEST 2010

New submission from Jay T <jaytula at gmail.com>:

I want to create a custom interactive shell where I continually do 
parse_args.  Like the following: 
parser = argparse.ArgumentParser() 
command = raw_input() 
  args = parser.parse_args(shlex.split(command)) 
  # Do some magic stuff 
  command = raw_input() 
The problem is that if I give it invalid input, it errors and exits 
with a help message.

I learned from argparse-users group that you can override the exit method like the following:

class MyParser(ArgumentParser): 
  def exit(self, status=0, message=None): 
    # do whatever you want here 

I would be nice to have this usage documented perhaps along with best practices for doing help messages in this scenario.

assignee: docs at python
components: Documentation
messages: 117287
nosy: docs at python, jayt
priority: normal
severity: normal
status: open
title: Documentation for argparse interactive use
type: feature request
versions: Python 2.7

Python tracker <report at bugs.python.org>

More information about the docs mailing list