t.i.d.D.errback(self, fail=None) : method documentation

Part of twisted.internet.defer.Deferred View Source

Run all error callbacks that have been added to this Deferred.

Each callback will have its result passed as the first argument to the next; this way, the callbacks act as a 'processing chain'. Also, if the error-callback returns a non-Failure or doesn't raise an Exception, processing will continue on the *success*-callback chain.

If the argument that's passed to me is not a failure.Failure instance, it will be embedded in one. If no argument is passed, a failure.Failure instance will be created based on the current traceback stack.

Passing a string as `fail' is deprecated, and will be punished with a warning message.
RaisesNoCurrentExceptionErrorIf fail is None but there is no current exception state.
API Documentation for Twisted, generated by pydoctor at 2011-10-27 16:02:37.