Serhiy Storchaka added the comment:
When LOAD_NAME is generated? Is it worth to optimize this case? Aren't
LOAD_FAST and LOAD_GLOBAL used in performance critical code?
It looks to me that there is a bug in fast path of _PyDict_LoadGlobal. If the
first lookup fails, it can raise an exception. We have to add
if (PyErr_Occurred())
return NULL;
before the second lookup.
Just for reference, the fast path for LOAD_GLOBAL was added in 8f8fe990e82c.
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nosy: +benjamin.peterson, rhettinger
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue25557>
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