bpo-46998: Allow subclassing Any at runtime#31841

hauntsaninja

https://bugs.python.org/issue46998

hauntsaninja

This PR also permits issubclass(X, Any). I don't actually have a use case for doing so, so happy to forbid it if people feel strongly.

The error in functools.singledispatch used to be TypeError: Invalid annotation for 'x'. typing.Any is not a class.. Since typing.Any is now a class, that isn't quite true. We could add a special case check in singledispatch against typing.Any if we think it's important to prevent its use. The dedicated tests for Any were added very recently, in #30050

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>

JelleZijlstra

Planning to merge in a few days unless there's more discussion.

JelleZijlstra

Looking at it again, I realize we should document this. Probably fine to just add a note like .. versionchanged: 3.11: Any can now be used as a base class.

bedevere-bot

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hauntsaninja

a comment on this pull request containing the phrase I have made the requested changes; please review again

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Thanks for making the requested changes!

@JelleZijlstra: please review the changes made to this pull request.

@Gobot1234

https://build.opensuse.org/request/show/1031001 by user mcepl + dimstar_suse - Clean specfile from old cruft. - Requires Python 3.7+ - Fix testsuite: Must test as module; don't need multibuild. - Update Summary and Description - Update to version 4.4.0 * Add `typing_extensions.Any` a backport of python 3.11's Any class which is subclassable at runtime. (backport from python/cpython#31841, by Shantanu and Jelle Zijlstra). Patch by James Hilton-Balfe (@Gobot1234). * Add initial support for TypeVarLike `default` parameter, PEP 696. Patch by Marc Mueller (@cdce8p). * Runtime support for PEP 698, adding `typing_extensions.override`. Patch by Jelle Zijlstra. * Add the `infer_variance` parameter to `TypeVar`, as specified in PEP 695. Patch by Jelle Zijlstra.

@Gobot1234

https://github.com/python/typing_extensions/blob/main/CHANGELOG.md#release-440-october-6-2022 Release 4.4.0 (October 6, 2022) * Add typing_extensions.Any a backport of python 3.11's Any class which is subclassable at runtime. (backport from python/cpython#31841, by Shantanu and Jelle Zijlstra). Patch by James Hilton-Balfe (@Gobot1234). * Add initial support for TypeVarLike default parameter, PEP 696. Patch by Marc Mueller (@cdce8p). * Runtime support for PEP 698, adding typing_extensions.override. Patch by Jelle Zijlstra. * Add the infer_variance parameter to TypeVar, as specified in PEP 695. Patch by Jelle Zijlstra. (From OE-Core rev: 0b8f212744f8de7e6b33ab02d042009eba462241) Signed-off-by: Tim Orling <tim.orling@konsulko.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

@Gobot1234

https://github.com/python/typing_extensions/blob/main/CHANGELOG.md#release-440-october-6-2022 Release 4.4.0 (October 6, 2022) * Add typing_extensions.Any a backport of python 3.11's Any class which is subclassable at runtime. (backport from python/cpython#31841, by Shantanu and Jelle Zijlstra). Patch by James Hilton-Balfe (@Gobot1234). * Add initial support for TypeVarLike default parameter, PEP 696. Patch by Marc Mueller (@cdce8p). * Runtime support for PEP 698, adding typing_extensions.override. Patch by Jelle Zijlstra. * Add the infer_variance parameter to TypeVar, as specified in PEP 695. Patch by Jelle Zijlstra. (From OE-Core rev: 0b8f212744f8de7e6b33ab02d042009eba462241) Signed-off-by: Tim Orling <tim.orling@konsulko.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

@Gobot1234

https://github.com/python/typing_extensions/blob/main/CHANGELOG.md#release-440-october-6-2022 Release 4.4.0 (October 6, 2022) * Add typing_extensions.Any a backport of python 3.11's Any class which is subclassable at runtime. (backport from python/cpython#31841, by Shantanu and Jelle Zijlstra). Patch by James Hilton-Balfe (@Gobot1234). * Add initial support for TypeVarLike default parameter, PEP 696. Patch by Marc Mueller (@cdce8p). * Runtime support for PEP 698, adding typing_extensions.override. Patch by Jelle Zijlstra. * Add the infer_variance parameter to TypeVar, as specified in PEP 695. Patch by Jelle Zijlstra. (From OE-Core rev: 34c8f1eac66ae770d64eaa854b1f263848210773) Signed-off-by: Tim Orling <tim.orling@konsulko.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

@Gobot1234

* Add SUMMARY, DESCRIPTION, BUGTRACKER and SECTION * Update HOMEPAGE to agree with PyPi https://github.com/python/typing_extensions/blob/main/CHANGELOG.md#release-440-october-6-2022 Release 4.4.0 (October 6, 2022) * Add typing_extensions.Any a backport of python 3.11's Any class which is subclassable at runtime. (backport from python/cpython#31841, by Shantanu and Jelle Zijlstra). Patch by James Hilton-Balfe (@Gobot1234). * Add initial support for TypeVarLike default parameter, PEP 696. Patch by Marc Mueller (@cdce8p). * Runtime support for PEP 698, adding typing_extensions.override. Patch by Jelle Zijlstra. * Add the infer_variance parameter to TypeVar, as specified in PEP 695. Patch by Jelle Zijlstra. License-Update: update copyright years; align with CPython LICENSE See python/typing_extensions#63 (From OE-Core rev: 6dc6c11b638c1d45f4dc9c7813f93a09229c33b3) Signed-off-by: Tim Orling <tim.orling@konsulko.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

@Gobot1234

* Add SUMMARY, DESCRIPTION, BUGTRACKER and SECTION * Update HOMEPAGE to agree with PyPi https://github.com/python/typing_extensions/blob/main/CHANGELOG.md#release-440-october-6-2022 Release 4.4.0 (October 6, 2022) * Add typing_extensions.Any a backport of python 3.11's Any class which is subclassable at runtime. (backport from python/cpython#31841, by Shantanu and Jelle Zijlstra). Patch by James Hilton-Balfe (@Gobot1234). * Add initial support for TypeVarLike default parameter, PEP 696. Patch by Marc Mueller (@cdce8p). * Runtime support for PEP 698, adding typing_extensions.override. Patch by Jelle Zijlstra. * Add the infer_variance parameter to TypeVar, as specified in PEP 695. Patch by Jelle Zijlstra. License-Update: update copyright years; align with CPython LICENSE See python/typing_extensions#63 (From OE-Core rev: 0cb15457edaa6cee3ac152a18d8b6ba4204dd958) Signed-off-by: Tim Orling <tim.orling@konsulko.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

@Gobot1234

* Add SUMMARY, DESCRIPTION, BUGTRACKER and SECTION * Update HOMEPAGE to agree with PyPi https://github.com/python/typing_extensions/blob/main/CHANGELOG.md#release-440-october-6-2022 Release 4.4.0 (October 6, 2022) * Add typing_extensions.Any a backport of python 3.11's Any class which is subclassable at runtime. (backport from python/cpython#31841, by Shantanu and Jelle Zijlstra). Patch by James Hilton-Balfe (@Gobot1234). * Add initial support for TypeVarLike default parameter, PEP 696. Patch by Marc Mueller (@cdce8p). * Runtime support for PEP 698, adding typing_extensions.override. Patch by Jelle Zijlstra. * Add the infer_variance parameter to TypeVar, as specified in PEP 695. Patch by Jelle Zijlstra. License-Update: update copyright years; align with CPython LICENSE See python/typing_extensions#63 (From OE-Core rev: 0cb15457edaa6cee3ac152a18d8b6ba4204dd958) Signed-off-by: Tim Orling <tim.orling@konsulko.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

@Gobot1234

* Add SUMMARY, DESCRIPTION, BUGTRACKER and SECTION * Update HOMEPAGE to agree with PyPi https://github.com/python/typing_extensions/blob/main/CHANGELOG.md#release-440-october-6-2022 Release 4.4.0 (October 6, 2022) * Add typing_extensions.Any a backport of python 3.11's Any class which is subclassable at runtime. (backport from python/cpython#31841, by Shantanu and Jelle Zijlstra). Patch by James Hilton-Balfe (@Gobot1234). * Add initial support for TypeVarLike default parameter, PEP 696. Patch by Marc Mueller (@cdce8p). * Runtime support for PEP 698, adding typing_extensions.override. Patch by Jelle Zijlstra. * Add the infer_variance parameter to TypeVar, as specified in PEP 695. Patch by Jelle Zijlstra. License-Update: update copyright years; align with CPython LICENSE See python/typing_extensions#63 (From OE-Core rev: 15ca091ae01ae298c013e8cf82ee6af382259ed8) Signed-off-by: Tim Orling <tim.orling@konsulko.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

@Gobot1234

* Add SUMMARY, DESCRIPTION, BUGTRACKER and SECTION * Update HOMEPAGE to agree with PyPi https://github.com/python/typing_extensions/blob/main/CHANGELOG.md#release-440-october-6-2022 Release 4.4.0 (October 6, 2022) * Add typing_extensions.Any a backport of python 3.11's Any class which is subclassable at runtime. (backport from python/cpython#31841, by Shantanu and Jelle Zijlstra). Patch by James Hilton-Balfe (@Gobot1234). * Add initial support for TypeVarLike default parameter, PEP 696. Patch by Marc Mueller (@cdce8p). * Runtime support for PEP 698, adding typing_extensions.override. Patch by Jelle Zijlstra. * Add the infer_variance parameter to TypeVar, as specified in PEP 695. Patch by Jelle Zijlstra. License-Update: update copyright years; align with CPython LICENSE See python/typing_extensions#63 Signed-off-by: Tim Orling <tim.orling@konsulko.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

bpo-46998: Allow subclassing Any at runtime

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bedevere-bot added the awaiting review label Mar 13, 2022

the-knights-who-say-ni added the CLA signed label Mar 13, 2022

hauntsaninja added 2 commits March 12, 2022 19:10

make error consistent

abea39a

remove functools checks

771f492

📜🤖 Added by blurb_it.

900f2c7

hauntsaninja marked this pull request as ready for review March 13, 2022 08:54

hauntsaninja requested review from Fidget-Spinner, JelleZijlstra, gvanrossum and rhettinger as code owners March 13, 2022 08:54

JelleZijlstra reviewed Mar 13, 2022

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hauntsaninja and others added 6 commits March 13, 2022 14:38

more tests

6e76441

Update Misc/NEWS.d/next/Library/2022-03-13-08-52-58.bpo-46998.cHh-9O.rst …

b00ab17

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>

oops, fix test

4d913ad

cooperative inheritance

1c1ab38

fix tests

4927e78

okay, make instancecheck work with multiple inheritance

68ea3a8

hauntsaninja requested a review from JelleZijlstra March 23, 2022 06:24

JelleZijlstra approved these changes Mar 24, 2022

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bedevere-bot added awaiting merge and removed awaiting review labels Mar 24, 2022

JelleZijlstra self-assigned this Mar 24, 2022

JelleZijlstra requested changes Mar 29, 2022

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mention in docs

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bedevere-bot added awaiting change review and removed awaiting changes labels Mar 30, 2022

bedevere-bot requested a review from JelleZijlstra March 30, 2022 02:35

hauntsaninja added 2 commits March 29, 2022 22:08

Merge remote-tracking branch 'upstream/main' into subclass-any

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fix pydoc test

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merwok reviewed Mar 30, 2022

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hauntsaninja added 2 commits March 30, 2022 14:54

add a sentence on reasoning

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preposition

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JelleZijlstra approved these changes Apr 1, 2022

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JelleZijlstra merged commit 5a4973e into python:main Apr 5, 2022

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JelleZijlstra mentioned this pull request Apr 13, 2022

Add typing to 3.11 What's New #91491

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hauntsaninja deleted the subclass-any branch April 26, 2022 03:09

sobolevn mentioned this pull request Aug 30, 2022

gh-95987: Fix repr of Any type subclasses #96412

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mikelane mentioned this pull request Oct 7, 2022

Bump typing-extensions from 4.3.0 to 4.4.0 mikelane/reddit-get#82

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kryzdof mentioned this pull request Oct 11, 2022

Bump typing-extensions from 4.3.0 to 4.4.0 kryzdof/time#6

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hauntsaninja mentioned this pull request Aug 1, 2023

Allow subclassing Any at runtime #91154

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bpo-46998: Allow subclassing Any at runtime#31841

bpo-46998: Allow subclassing Any at runtime#31841
JelleZijlstra merged 15 commits into
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