[issue18594] C accelerator for collections.Counter is slow

[Stefan Behnel]

Stefan Behnel added the comment:

Can you update the benchmark numbers to show what the difference is compared to pure Python (and to the fastpath) now?

One more thing: the fastpath depends on .__getitem__() and friends, whereas the fallback path depends on .get(). What if someone overrides .get() but not .__getitem__()?  (Might be a hypothetical case...)

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18594>
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