New submission from Joshua Chia <joshc...@gmail.com>:
What steps will reproduce the problem?
1. Make a script containing this code:
parser = argparse.ArgumentParser()
parser.add_argument('-i', '--input-base-directory',
type=argparse.FileType('r'),
default='/home')
parser.parse_args()
2. Run the script with '-h'.
3. See it complain that '/home' is a directory
Detailed explanation:
With '-h', we just need to print the help message. We shouldn't fail on a
default value that's wrong or else the help message will not get printed and
the user will have no idea what the problem is. This is a valid use case as I
want to provide a default location, but I can't guarantee that the location
works on the user's machine. I end up doing my own checking.
----------
components: Library (Lib)
messages: 146458
nosy: Joshua.Chia
priority: normal
severity: normal
status: open
title: When -h is used with argparse, default values that fail should not matter
type: feature request
versions: Python 2.7
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue13271>
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