[issue20440] Use Py_REPLACE/Py_XREPLACE macros

[Jim Jewett]

Jim Jewett added the comment:

I am changing this from "High" to "Release blocker", because I think 3.3 should make an explicit decision about whether to remove itself from the Affected Versions list. 

3.4 probably should too, since it is now in bug-fix mode.

Then this issue can go back to whatever level is otherwise appropriate.

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nosy: +Jim.Jewett
priority: high -> release blocker

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20440>
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