[issue1878] class attribute cache failure (regression)

[Guido van Rossum]

Guido van Rossum <guido at python.org> added the comment:

I like Armin's latest proposal: have Py_TPFLAGS_DEFAULT include
Py_TPFLAGS_HAVE_VERSION_TAG when compiling the core only.  ISTR there's
a way to do this, but I can't find it right now.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue1878>
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