Ezio Melotti added the comment:
Technically you are correct, however using zero-width classes inside a
lookbehind doesn't make much sense, because the result would be equivalent even
without lookbehind.
I replaced 'never' with 'not', because usually it will not match, except in
these corner c
Roundup Robot added the comment:
New changeset 7c262962b681 by Ezio Melotti in branch '2.7':
#14461: fix wording.
http://hg.python.org/cpython/rev/7c262962b681
New changeset 7f35da912739 by Ezio Melotti in branch '3.2':
#14461: fix wording.
http://hg.python.org/cpython/rev/7f35da912739
New cha
New submission from py.user :
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:"