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The usability, learnability, and readability of match object code would be improved by giving it a more Pythonic API (inspired by ElementTree).
Given a search like:
 data = 'Answer found on row 8 column 12.'
 mo = re.search(r'row (?P<row>\d+) column (?P<col>\d+)', data)
We currently access results with:
 print(mo.group('col'))
 print(len(mo.groups())
A better way would look like this:
 print(mo['col'])
 print(len(mo))
This would work nicely with string formatting:
 print('Located coordinate at (%(row)s, %(col)s)' % mo)
 print('Located coordinate at ({row}, {col})'.format_map(mo))