doc/core/examples/pb_exceptions.py

   1
   2 from twisted.python import util
   3 from twisted.spread import pb
   4 from twisted.cred import portal, checkers, credentials
   5
   6 class Avatar(pb.Avatar):
   7     def perspective_exception(self, x):
   8         return x / 0
   9
  10 class Realm:
  11     def requestAvatar(self, interface, mind, *interfaces):
  12         if pb.IPerspective in interfaces:
  13             return pb.IPerspective, Avatar(), lambda: None
  14
  15 def cbLogin(avatar):
  16     avatar.callRemote("exception", 10).addCallback(str).addCallback(util.println)
  17
  18 def ebLogin(failure):
  19     print failure
  20
  21 def main():
  22     c = checkers.InMemoryUsernamePasswordDatabaseDontUse(user="pass")
  23     p = portal.Portal(Realm(), [c])
  24     server = pb.PBServerFactory(p)
  25     server.unsafeTracebacks = True
  26     client = pb.PBClientFactory()
  27     login = client.login(credentials.UsernamePassword("user", "pass"))
  28     login.addCallback(cbLogin).addErrback(ebLogin).addBoth(lambda: reactor.stop())
  29
  30     from twisted.internet import reactor
  31     p = reactor.listenTCP(0, server)
  32     c = reactor.connectTCP('127.0.0.1', p.getHost().port, client)
  33     reactor.run()
  34
  35 if __name__ == '__main__':
  36     main()