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Commit f048a8f

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Pickler.save(): Fix for SF bug #494904: Cannot pickle a class with a

metaclass, reported by Dan Parisien. Objects that are instances of custom metaclasses, i.e. whose class is a subclass of 'type', should be pickled the same as new-style classes (objects whose class is 'type'). This can't be done through a dispatch table entry, and the __reduce__ trick doesn't work for these, since it finds the unbound __reduce__ for instances of the class (inherited from 'object'). So check explicitly using issubclass().

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Lib
- pickle.py

`‎Lib/pickle.py‎`

-Original file line number
+Diff line change
         try:
             f = self.dispatch[t]
         except KeyError:
 +            if issubclass(t, TypeType):
 +                self.save_global(object)
 +                return
++
             pid = self.inst_persistent_id(object)
             if pid is not None:
                 self.save_pers(pid)

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