Clean code with better named captures.

namedmatch.py

"""`namedmatch` mimics `re.match` but also creates attributes based on the
values of the named captures.

Example

    >>> string = 'foo bar baz'
    >>> match = namedmatch(r'(?P<start>\w+) (?P<end>\w+)', string)
    >>> print match.start
    "foo"
    >>> print match.end
    "bar"
    >>> print match
    namedmatch({'start': 'foo', 'end': 'bar'})
"""
from collections import namedtuple
import re

def namedmatch(pattern, string, flags=0, matcher=re.match):
    match = matcher(pattern, string, flags)
    if match is None:
        return None
    groupdict = match.groupdict()
    NamedMatch = namedtuple('namedmatch', groupdict.iterkeys())
    return NamedMatch(*groupdict.itervalues())