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gh-152636: Add a note that frozendict is preferable than MappingProxyType#152637

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gh-152636: Add a note that frozendict is preferable than MappingProxyType#152637
sobolevn wants to merge 1 commit into
python:mainfrom
sobolevn:issue-152636

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@sobolevn

@sobolevn sobolevn commented Jun 29, 2026

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I didn't know provide links to the exact issue on github, but I can if others think that it is needed.

Refs #152405
Refs #152483

@sobolevn sobolevn added the needs backport to 3.15 pre-release feature fixes, bugs and security fixes label Jun 29, 2026
@bedevere-app bedevere-app Bot added docs Documentation in the Doc dir skip news labels Jun 29, 2026
@github-project-automation github-project-automation Bot moved this to Todo in Docs PRs Jun 29, 2026
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Documentation build overview

📚 cpython-previews | 🛠️ Build #33363747 | 📁 Comparing eeb1cd7 against main (edcc07d)

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1 file changed
± library/types.html

@methane

methane commented Jun 30, 2026

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This warning feels redundant to me. MappingProxyType is ultimately just a proxy; it is sometimes used as a substitute for frozendict, but that is not its main purpose. MappingProxyType is not a well-known class, so people will probably find frozendict more easily.

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awaiting core review docs Documentation in the Doc dir needs backport to 3.15 pre-release feature fixes, bugs and security fixes skip news

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