[issue32226] Implement PEP 560: Core support for typing module and generic types

[Guido van Rossum]

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

I think the best thing to do is not to panic! Also maybe PGO could help?

On Dec 14, 2017 15:43, "Ivan Levkivskyi" <report at bugs.python.org> wrote:

>
> Ivan Levkivskyi <levkivskyi at gmail.com> added the comment:
>
> Interesting. I have noticed similar when I tried to add a fast loop
> proposed by Serhiy. It should save at least one pointer comparison for base
> class, but sometimes it actually led to slow-downs (although very small).
> How can one fight this kind of problems?
>
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> <https://bugs.python.org/issue32226>
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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue32226>
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