Elazar Gershuni added the comment:
I think in such case it is reasonable to fail silently, since the information
will not be readable anyway.
Is a patch like the attached acceptable? (Sorry, I am new here)
results:
>>> import os, argparse; p = argparse.ArgumentParser(prog='PROG')
>>> os.environ['COLUMNS'] = '0'
>>> print(p.format_help())
usage: PROG
[-h]
optional arguments:
-h, --help
>>>
----------
keywords: +patch
nosy: +elazar
Added file: http://bugs.python.org/file31552/fixargparse.patch
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