[Twisted-Python] Patch: sending new style classes via perspective broker

[Ralf Schmitt]

Hi,
sending new style classes via perspective broker currently isn't
possible without extra effort. I have attached a short test program
and a patch to jelly.py, which solves that problem.

- Ralf

=========== 
from twisted.spread import pb
from twisted.internet import reactor, threads
from twisted.python import threadable

class Data(pb.Copyable, pb.RemoteCopy, object):
    def __init__(self, s):
        self.s = s

pb.setUnjellyableForClass(Data, Data)
    
class Echoer(pb.Root):
    def remote_echo(self, st):
        print "REMOTE_ECHO:", st, st.s
        return st

if __name__ == '__main__':
    reactor.listenTCP(8789, pb.PBServerFactory(Echoer()))

    factory = pb.PBClientFactory()
    reactor.connectTCP("127.0.0.1", 8789, factory)
    factory.getRootObject().addCallback(lambda r: r.callRemote("echo", Data("foo")))

    reactor.callLater(2, reactor.stop)
    reactor.run()

===================================================================
RCS file: /cvs/Twisted/twisted/spread/jelly.py,v
retrieving revision 1.48
diff -u -r1.48 jelly.py
--- jelly.py    4 Jun 2003 00:18:03 -0000       1.48
+++ jelly.py    10 Dec 2003 12:35:48 -0000
@@ -520,6 +520,9 @@
                 inst = _Dummy() # XXX chomp, chomp
                 inst.__class__ = regClass
                 method = inst.unjellyFor
+            elif isinstance(regClass, type): # new style class
+                inst = object.__new__(regClass) # does not call regClass.__init__
+                method = inst.unjellyFor
             else:
                 method = regClass # this is how it ought to be done
             val = method(self, obj)

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