Mercurial > cpython-lru_cache-weakref
diff Objects/typeobject.c @ 25657:0690ea6d1153 2.2
Backport, at the reqest of Kevin Jacobs:
- Changed new-style class instantiation so that when C's __new__
method returns something that's not a C instance, its __init__ is
not called. [SF bug #537450]
XXX This is arguably a semantic change, but it's hard to imagine a
reason for wanting to depend on the old behavior. If problems with
this are reported within a week of the release of 2.2.2 beta 1, we may
revert this change.
| author | Guido van Rossum <guido@python.org> |
|---|---|
| date | Mon, 07 Oct 2002 18:08:27 +0000 |
| parents | a7dbe4e7f5de |
| children | e374ea7ac4ce |
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--- a/Objects/typeobject.c Mon Oct 07 17:19:41 2002 +0000 +++ b/Objects/typeobject.c Mon Oct 07 18:08:27 2002 +0000 @@ -189,6 +189,10 @@ (kwds == NULL || (PyDict_Check(kwds) && PyDict_Size(kwds) == 0))) return obj; + /* If the returned object is not an instance of type, + it won't be initialized. */ + if (!PyType_IsSubtype(obj->ob_type, type)) + return obj; type = obj->ob_type; if (PyType_HasFeature(type, Py_TPFLAGS_HAVE_CLASS) && type->tp_init != NULL &&