[issue31179] Speed-up dict.copy() up to 5.5 times.

[STINNER Victor]

STINNER Victor added the comment:

>>>> d = dict.fromkeys(range(2000))
>>>> for i in range(1999): del d[i]
> ...
>>>> sys.getsizeof(d)
> 41020
>>>> sys.getsizeof(d.copy())
> 136

Why "del" doesn't compact the dict?

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue31179>
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