On Mar 29, 3:22 pm, "aspineux" <[EMAIL PROTECTED]> wrote: > I want to parse > > '[EMAIL PROTECTED]' or '<[EMAIL PROTECTED]>' and get the email address [EMAIL > PROTECTED] > > the regex is > > r'<[EMAIL PROTECTED]>|[EMAIL PROTECTED]' > > now, I want to give it a name > > r'<(?P<email>[EMAIL PROTECTED])>|(?P<email>[EMAIL PROTECTED])' > > sre_constants.error: redefinition of group name 'email' as group 2; > was group 1 > > BUT because I use a | , I will get only one group named 'email' ! > > Any comment ? > > PS: I know the solution for this case is to use r'(?P<lt><)?(?P<email> > [EMAIL PROTECTED])(?(lt)>)'
use two group names, one for each alternate form and if you are not concerned with whichever matched do something like the following: >>> s1 = '[EMAIL PROTECTED]' >>> s2 = '<[EMAIL PROTECTED]>' >>> matchobj = re.search(r'<(?P<email1>[EMAIL PROTECTED])>|(?P<email2>[EMAIL >>> PROTECTED])', s1) >>> matchobj.groupdict()['email1'] or matchobj.groupdict()['email2'] '[EMAIL PROTECTED]' >>> matchobj = re.search(r'<(?P<email1>[EMAIL PROTECTED])>|(?P<email2>[EMAIL >>> PROTECTED])', s2) >>> matchobj.groupdict()['email1'] or matchobj.groupdict()['email2'] '[EMAIL PROTECTED]' >>> - Paddy. -- http://mail.python.org/mailman/listinfo/python-list
