Eric V. Smith added the comment:
I'd definitely be for mo['col']. I can't say I've ever used len(mo.groups()).
I do have lots of code like:
return mo.group('col'), mo.group('row'), mo.group('foo')
Using groupdict there is doable but not great. But:
return mo['col'], mo['row'], mo['foo']
would be a definite improvement.
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nosy: +eric.smith
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<http://bugs.python.org/issue24454>
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