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| author | Guido van Rossum <guido@python.org> | 2001-12-19 16:55:02 (GMT) |
|---|---|---|
| committer | Guido van Rossum <guido@python.org> | 2001-12-19 16:55:02 (GMT) |
| commit | f048a8f6d79173cc1da1bf12c60ae06fea36762c (patch) | |
| tree | 8010b1cdebbe8d725d689509be7a3082285c0dd9 /Lib/pickle.py | |
| parent | 5935ff07beb0ed2b37dc7a85f04861122eaa5a9a (diff) | |
| download | cpython-f048a8f6d79173cc1da1bf12c60ae06fea36762c.zip cpython-f048a8f6d79173cc1da1bf12c60ae06fea36762c.tar.gz cpython-f048a8f6d79173cc1da1bf12c60ae06fea36762c.tar.bz2 | |
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().
Diffstat (limited to 'Lib/pickle.py')
| -rw-r--r-- | Lib/pickle.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Lib/pickle.py b/Lib/pickle.py index 8a07925..4cc6629 100644 --- a/Lib/pickle.py +++ b/Lib/pickle.py @@ -163,6 +163,10 @@ class Pickler: 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) |