[issue21118] str.translate is absurdly slow in majority of use cases (takes up to 60x longer than similar functions)

[Antoine Pitrou]

Antoine Pitrou added the comment:

> bytes.translate() is much faster because it builds a C array of 256
> items to fast table lookup, whereas str.translate() requires a Python
> dict lookup for each character, which is much slower.

It should be easy to devise a simple hash table for the common case of one-to-one translation (and also deletion).

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nosy: +pitrou

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21118>
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