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| author | Guido van Rossum <guido@python.org> | 2001-12-19 16:56:54 (GMT) |
|---|---|---|
| committer | Guido van Rossum <guido@python.org> | 2001-12-19 16:56:54 (GMT) |
| commit | 950dce6f01039bae5efdb8eedbe9ad48d81d0488 (patch) | |
| tree | 9959ef9c146a074636478cd85553e20a44f2dd9f | |
| parent | f048a8f6d79173cc1da1bf12c60ae06fea36762c (diff) | |
| download | cpython-950dce6f01039bae5efdb8eedbe9ad48d81d0488.zip cpython-950dce6f01039bae5efdb8eedbe9ad48d81d0488.tar.gz cpython-950dce6f01039bae5efdb8eedbe9ad48d81d0488.tar.bz2 | |
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 ob_type
is a subclass of PyType_Type, should be pickled the same as new-style
classes (objects whose ob_type is PyType_Type). This can't be done
through the existing dispatch switches, and the __reduce__ trick
doesn't work for these, since it finds the unbound __reduce__ for
instances of the class (inherited from PyBaseObject_Type). So check
explicitly using PyType_IsSubtype().
| -rw-r--r-- | Modules/cPickle.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Modules/cPickle.c b/Modules/cPickle.c index 425ff10..a4943ce 100644 --- a/Modules/cPickle.c +++ b/Modules/cPickle.c @@ -1990,6 +1990,11 @@ save(Picklerobject *self, PyObject *args, int pers_save) { } } + if (PyType_IsSubtype(type, &PyType_Type)) { + res = save_global(self, args, NULL); + goto finally; + } + if (!pers_save && self->inst_pers_func) { if ((tmp = save_pers(self, args, self->inst_pers_func)) != 0) { res = tmp; |