argparse execute system exit in python prompt

[TarsisAzevedo]

BPO	10506
Nosy	@bitdancer

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2010-11-22.20:19:41.800>
created_at = <Date 2010-11-22.15:15:21.334>
labels = ['invalid', 'type-bug', 'library']
title = 'argparse execute system exit in python prompt'
updated_at = <Date 2010-11-22.20:19:41.798>
user = 'https://bugs.python.org/TarsisAzevedo'

bugs.python.org fields:

activity = <Date 2010-11-22.20:19:41.798>
actor = 'r.david.murray'
assignee = 'none'
closed = True
closed_date = <Date 2010-11-22.20:19:41.800>
closer = 'r.david.murray'
components = ['Library (Lib)']
creation = <Date 2010-11-22.15:15:21.334>
creator = 'Tarsis.Azevedo'
dependencies = []
files = []
hgrepos = []
issue_num = 10506
keywords = []
message_count = 2.0
messages = ['122134', '122162']
nosy_count = 4.0
nosy_names = ['bethard', 'r.david.murray', 'santoso.wijaya', 'Tarsis.Azevedo']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = None
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue10506'
versions = ['Python 2.7', 'Python 3.2']

[TarsisAzevedo]

Hi all, when I use argparse in python prompt, and raise a exception, as the code below:

>>> import argparse
>>> parser = argparse.ArgumentParser()
>>> parser.add_argument('-i' type=int)
>>> parser.parse_args(['-i', 'a'])

the prompt is closed.

This behavior this in error function (Lib/argparse.py:2325)
I think in python prompt this behavior it's wrong.

it's right?!

[bitdancer]

This is working as designed. Whether or not the design is correct has been debated in the past. If you want to re-debate it the appropriate place is probably python-ideas.