New submission from Zacrath:
Executing the attached script causes an AssertionError.
Traceback (most recent call last):
File "bug.py", line 18, in <module>
parser.format_usage()
File "/usr/lib/python3.4/argparse.py", line 2318, in format_usage
return formatter.format_help()
File "/usr/lib/python3.4/argparse.py", line 287, in format_help
help = self._root_section.format_help()
File "/usr/lib/python3.4/argparse.py", line 217, in format_help
func(*args)
File "/usr/lib/python3.4/argparse.py", line 338, in _format_usage
assert ' '.join(opt_parts) == opt_usage
AssertionError
The script was tested in a clean Python installation.
If any of the arguments are removed, there is no AssertionError exception.
If "help=SUPPRESS" is removed, there is no AssertionError exception.
This bug appears to have existed since Python 3.2, the first version that
included argparse.
----------
files: bug.py
messages: 226572
nosy: Zacrath, bethard
priority: normal
severity: normal
status: open
title: argparse AssertionError with add_mutually_exclusive_group and
help=SUPPRESS
type: behavior
versions: Python 2.7, Python 3.1, Python 3.2, Python 3.3, Python 3.4, Python 3.5
Added file: http://bugs.python.org/file36572/bug.py
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue22363>
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