New submission from Paolo Elvati <elv...@umich.edu>:
Hi,
when a default is specified for a file argument that is open with writing
permission (FileType('w')), the default file is always created even if the
argument is specified in the command line.
For example he code:
import argparse
parser = argparse.ArgumentParser()
parser.add_argument(
"-o",
default = 'fake',
dest = 'OutputFile',
type = argparse.FileType('w')
)
args = parser.parse_args()
will create the empty file "fake" even if the -o option is given.
The value inside the code of args.Outputfile is not affected.
Paolo
----------
components: Library (Lib)
messages: 133598
nosy: Paolo.Elvati, bethard
priority: normal
severity: normal
status: open
title: argparse: unexpected behavior of default for FileType('w')
type: behavior
versions: Python 3.2
_______________________________________
Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue11839>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
