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-rw-r--r--Modules/cPickle.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/Modules/cPickle.c b/Modules/cPickle.c
index 6c7ed99..a0e443e 100644
--- a/Modules/cPickle.c
+++ b/Modules/cPickle.c
@@ -4473,8 +4473,16 @@ load_build(Unpicklerobject *self)
i = 0;
while (PyDict_Next(state, &i, &d_key, &d_value)) {
- if (PyObject_SetItem(dict, d_key, d_value) < 0)
+ /* normally the keys for instance attributes are
+ interned. we should try to do that here. */
+ Py_INCREF(d_key);
+ if (PyString_CheckExact(d_key))
+ PyString_InternInPlace(&d_key);
+ if (PyObject_SetItem(dict, d_key, d_value) < 0) {
+ Py_DECREF(d_key);
goto finally;
+ }
+ Py_DECREF(d_key);
}
Py_DECREF(dict);
}