[Twisted-Python] Transforming Exception -> pb.Error in a
remote_foo method  Brian Granger ellisonbg.net at gmail.com Wed
Dec 20 12:17:04 EST 2006   In the Twisted docs it is claimed
that in order to propagate exceptions over PB:  "The only
special thing you do is to define your Exception subclass by
deriving it from pb.Error. "  This seems simple enough, but I am
using PB to adapt a general service that doesn't use pb.Errors
(as the service is also adapted to other protocols).  How can
one transform a regular Exception to a pb.Error? The following
does not work:      def remote_foo(self, f):         d =
self.service.foo(f)         def raiser():             raise
pb.Error('I pbfailed')         d.addErrback(lambda reason:
raiser())        # reason is an Exception, not a pb.Error!
return d  In this case, the server still complains about an
unhandled exception.  Any thoughts about how to do this?    More
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