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Fixed #36705 -- Avoided string concatenation in utils.

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Repeated string concatenation performs poorly on PyPy.
Thanks Seokchan Yoon for the report.
This commit is contained in:
Kasyap Pentamaraju 2025-11-03 22:57:53 +05:30 • committed by Jacob Walls
parent 2768747526
commit 1c7db70e79
5 changed files with 30 additions and 22 deletions
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6
docs/topics/performance.txt
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@ -426,6 +426,12 @@ Django is compatible with versions of PyPy corresponding to the supported
Python versions, but you will need to check the compatibility of other
libraries you rely on.
That said, a lot of a web framework's work is done by concatenating
strings, and PyPy has an issue with that (see
`this PyPy blog
<https://pypy.org/posts/2023/01/string-concatenation-quadratic.html>`_).
This may cause performance issues, depending on your use.
C implementations of Python libraries
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~