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pablogsal merged 1 commit into from
Mar 4, 2021
Merged

Improve the description of the improvements in bpo-42202 #24738

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5 changes: 3 additions & 2 deletions Doc/whatsnew/3.10.rst
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Expand Up @@ -903,8 +903,9 @@ Optimizations

* Function parameters and their annotations are no longer computed at runtime,
but rather at compilation time. They are stored as a tuple of strings at the
bytecode level. It is now around 100% faster to create a function with parameter
annotations. (Contributed by Yurii Karabas and Inada Naoki in :issue:`42202`)
bytecode level. It is now around 2 times faster to create a function with
parameter annotations. (Contributed by Yurii Karabas and Inada Naoki
in :issue:`42202`)

* Substring search functions such as ``str1 in str2`` and ``str2.find(str1)``
now sometimes use Crochemore & Perrin's "Two-Way" string searching
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