[issue19369] PyObject_LengthHint is slow

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

What if use _PyObject_HasLen?

if (_PyObject_HasLen(o)) {
    res = PyObject_Length(o);
    ...
}

hint = _PyObject_LookupSpecial(o, &PyId___length_hint__);
...

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nosy: +serhiy.storchaka

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19369>
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