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Tue Aug 30 19:29:04 CEST 2005 · http://mail.python.org/pipermail/python-dev/2005-August/055840.html

    Antoine> By the way, re.partition() is *really* useful compared to
    Antoine> re.split() because with the latter you don't which string
    Antoine> precisely matched the pattern (it isn't an issue with
    Antoine> str.split() since matching is exact).

Just group your re:

    >>> import re
    >>>
    >>> re.split("ab", "abracadabra")
    ['', 'racad', 'ra']
    >>> re.split("(ab)", "abracadabra")
    ['', 'ab', 'racad', 'ab', 'ra']

and you get it in the return value.  In fact, re.split with a grouped re is
very much like Raymond's str.partition method without the guarantee of
returning a three-element list.

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[Python-Dev] partition() (was: Remove str.find in 3.0?)