[issue3611] invalid exception context

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

[...]
>
> This exception may comes from PyObject_IsSubclass() which calls
> PyObject_GetAttr(cls, "__subclasscheck__").

If you look at the code for PyObject_IsSubclass(), there is a pair of
PyErr_Fetch / PyErr_Restore calls around PyObject_GetAttr(cls,
"__subclasscheck__"). So this exception should vanish immediately rather than
stay around.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue3611>
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