[issue13107] Text width in optparse.py can become negative

[Elazar Gershuni]

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  

>>>

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keywords: +patch
nosy: +elazar
Added file: http://bugs.python.org/file31552/fixargparse.patch

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