STINNER Victor <[email protected]> added the comment:
_PyList_ConvertToTuple(PyObject *v):
assert(Py_REFCNT(v) == 1);
I don't think that _PyList_ConvertToTuple() usage is common enough to justify
this micro-optimization.
IMHO "Py_REFCNT(v) == 1" assumption is too strong. Python internals can be very
surprising, especially when borrowered references and the garbage collector
comes into the game.
I concur with Serhiy and Raymond: it's too risky with very low benefit. It is
likely to have no significant impact on macro benchmarks like
https://pyperformance.readthedocs.io/ ( https://speed.python.org/ ).
----------
resolution: -> rejected
stage: patch review -> resolved
status: open -> closed
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Python tracker <[email protected]>
<https://bugs.python.org/issue36031>
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