Try to not use cl_dict

[Thomas Herve]

It'd be nice to not use this implementation detail, to hope to be able to compile under pypy one day. Here's a proposed patch:

=== modified file 'zope/proxy/_zope_proxy_proxy.c'
--- zope/proxy/_zope_proxy_proxy.c 2012-02-23 14:05:31 +0000
+++ zope/proxy/_zope_proxy_proxy.c 2012-03-17 19:46:22 +0000
@@ -174,13 +174,15 @@

         if (((PyTypeObject *)base) != &ProxyType) {
             if (PyClass_Check(base))
- dict = ((PyClassObject *)base)->cl_dict;
+ dict = GetAttrString(base, "__dict__");
             else {
                 assert(PyType_Check(base));
                 dict = ((PyTypeObject *)base)->tp_dict;
+ Py_INCREF(dict);
             }
             assert(dict && PyDict_Check(dict));
             res = PyDict_GetItem(dict, name);
+ Py_DECREF(dict);
             if (res != NULL)
                 return res;
         }

Thanks!

[Tres Seaver (tseaver)]

Now tracked on Github:

  https://github.com/zopefoundation/zope.proxy/issues/2