@property
def is_permanent_redirect(self):
    'True if this Response one of the permanent versions of redirect.'
    return (('location' in self.headers) and (self.status_code in (codes.moved_permanently, codes.permanent_redirect)))
True if this Response one of the permanent versions of redirect.
@property
def is_permanent_redirect(self):
    
    return (('location' in self.headers) and (self.status_code in (codes.moved_permanently, codes.permanent_redirect)))