召集爱看小薄本子又熟悉 regex 的各路绅士大神~

import re regex_patern = ur'([\(\[](?P<event>[^\)\]]*)[\)\]])?\s*([\(\[](?P<type>[^\)\](\)\])]*)[\)\]])?\s*(\[(?P<group>[^\(\]]*)(\((?P<artist>[^\)]*)\))?\])?(?P<title>[^\(\)\[\]]*)([\(\[](?P<from>[^\)\]]*)[\)\]])?(\s*[\(\[](?P<more1>[^\)\]]*)[\)\]])' p = re.compile (regex_patern ) rows= [ '(event ) (tag ) [group (artist )] title (form ) [addition1] [addition2]', '(event ) [group (artist )] title (form ) [addition1]', '[event] [group (artist )] title (form ) (addition1 )', '(tag ) [group (artist )] title', '[group (artist )] title', 'title', ] for r in rows: r = re.search (p, r ) print r.groupdict () #输出： {u'from': 'form', u'more1': 'addition1', u'artist': 'artist', u'title': ' title ', u'group': 'group ', u'type': 'tag', u'event': 'event'} {u'from': 'form', u'more1': 'addition1', u'artist': 'artist', u'title': ' title ', u'group': 'group ', u'type': None, u'event': 'event'} {u'from': 'form', u'more1': 'addition1', u'artist': 'artist', u'title': ' title ', u'group': 'group ', u'type': None, u'event': 'event'} {u'from': None, u'more1': 'group (artist', u'artist': None, u'title': '', u'group': None, u'type': None, u'event': 'tag'} {u'from': None, u'more1': 'group (artist', u'artist': None, u'title': '', u'group': None, u'type': None, u'event': None} --------------------------------------------------------------------------- AttributeError Traceback (most recent call last ) <ipython-input-5-831c548bc3f0> in <module>() 15 for r in rows: 16 r = re.search (p, r ) ---> 17 print r.groupdict () AttributeError: 'NoneType' object has no attribute 'groupdict'