这段代码哪里有问题了

error

def GetPage(self,url):
        try: 
            fp = urllib2.urlopen(url)
            result = fp.read()
        except Exception, e:
            self.logger.error(
                'url %s is unreachable. Exception %s %s' %
                (url, e.__class__.__name__, e))
            result=None
        fp.close()
        return result