[issue21027] difflib new cli interface

[STINNER Victor]

STINNER Victor added the comment:

$ ./python -m difflib -u a.py b.py 
...
sys:1: ResourceWarning: unclosed file <_io.TextIOWrapper name='a.py' mode='r' encoding='UTF-8'>
sys:1: ResourceWarning: unclosed file <_io.TextIOWrapper name='b.py' mode='r' encoding='UTF-8'>

It looks like files are not closed.

I would prefer to have the unified output (-u) by default. I don't think that Python should mimick exactly UNIX tools.

tarfile has now a command line interface, but options are different. For example, it's -e to extract instead of -x.

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nosy: +haypo

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21027>
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