[issue23590] Potential leak in PyFloat_AsDouble. Refcount error.

[Mark Dickinson]

Mark Dickinson added the comment:

The patch should have a test before it goes in.  As an aside, it's a bit disturbing that we apparently don't have any code already in our test-suite that exercises this case.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue23590>
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