Class HTTP400BadRequest

pattern/web/__init__.py:231–232

         # For specific purposes you should build your own urllib2.HTTPRedirectHandler
         # and pass it to urllib2.build_opener() in URL.open()
class HTTP400BadRequest(HTTPError):
    pass # URL contains an invalid request.
class HTTP401Authentication(HTTPError):
    pass # URL requires a login and password.
class HTTP403Forbidden(HTTPError):