[issue26967] argparse: allow_abbrev=False stops -vv from working

[Xiang Zhang]

Xiang Zhang added the comment:

After some research I suggest to document this behaviour that allow_abbrev=False will suspend option prefix matching. Simply fixing the count action behaviour is not enough since it also prevents you from creating custom actions that want to use option prefix matching. What's your advice berker?

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nosy: +bethard

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue26967>
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