New submission from py.user <port...@yandex.ru>: http://docs.python.org/py3k/library/re.html "Note that patterns which start with positive lookbehind assertions will never match at the beginning of the string being searched; you will most likely want to use the search() function rather than the match() function:"
>>> re.match(r'(?<=^)abc', 'abc').group() 'abc' >>> re.match(r'(?<=\b)abc', 'abc').group() 'abc' >>> re.match(r'(?<=\A)abc', 'abc').group() 'abc' >>> re.match(r'(?<=\A)abc', 'abc', re.DEBUG).group() assert -1 at at_beginning_string literal 97 literal 98 literal 99 'abc' >>> in some cases match() can match ---------- assignee: docs@python components: Documentation, Regular Expressions messages: 157265 nosy: docs@python, ezio.melotti, mrabarnett, py.user priority: normal severity: normal status: open title: In re's positive lookbehind assertion documentation match() cannot match versions: Python 3.2 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue14461> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
