[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

STINNER Victor added the comment: New changeset 20d56bd41b56023ce9fa3739c0c9aa8be8d48bfa by Markus Gerstel in branch '3.8': bpo-39674: Fix collections ABC deprecation notice (GH-25281) https://github.com/python/cpython/commit/20d56bd41b56023ce9fa3739c0c9aa8be8d48bfa --

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

Change by Roundup Robot : -- pull_requests: +24017 pull_request: https://github.com/python/cpython/pull/25281 ___ Python tracker ___

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

Change by Roundup Robot : -- nosy: +python-dev nosy_count: 5.0 -> 6.0 pull_requests: +24016 pull_request: https://github.com/python/cpython/pull/25280 ___ Python tracker ___

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

Change by ปพนพัชร์ บรรพจันทร์ : -- components: +Unicode -Library (Lib) nosy: +ezio.melotti versions: +Python 3.10 -Python 3.9 ___ Python tracker ___

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

STINNER Victor added the comment: I close this issue. So far, it seems like the number of incompatible changes in Python 3.9 is reasonable. If more incompatible changes should be reverted, I suggest to open new issues. -- resolution: -> fixed stage: patch review -> resolved

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

STINNER Victor added the comment: New changeset 942f7a2dea2e95a0fa848329565c0d0288d92e47 by Victor Stinner in branch 'master': bpo-39674: Revert "bpo-37330: open() no longer accept 'U' in file mode (GH-16959)" (GH-18767)

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

STINNER Victor added the comment: New changeset a6d3546d003d9873de0f71b319ad79d203374bf0 by Victor Stinner in branch 'master': bpo-39674: Fix typo in What's New In Python 3.9 (GH-18776) https://github.com/python/cpython/commit/a6d3546d003d9873de0f71b319ad79d203374bf0 --

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

Change by STINNER Victor : -- pull_requests: +18133 pull_request: https://github.com/python/cpython/pull/18776 ___ Python tracker ___

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

STINNER Victor added the comment: New changeset 116fd4af7370706d0d99ac7c70541ef965672d4e by Victor Stinner in branch 'master': bpo-39674: Suggest to test with DeprecationWarning (GH-18552) https://github.com/python/cpython/commit/116fd4af7370706d0d99ac7c70541ef965672d4e --

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

STINNER Victor added the comment: New changeset 91fe4142642286b65c166f7b6e27de16f42b1286 by Victor Stinner in branch 'master': bpo-39674: Update collections ABC deprecation doc (GH-18747) https://github.com/python/cpython/commit/91fe4142642286b65c166f7b6e27de16f42b1286 --

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

STINNER Victor added the comment: New changeset 2aa694dd55202eb6d062fdf49c07cf95f8520f2d by Victor Stinner in branch '3.8': bpo-39674: Update collections ABC deprecation doc (GH-18748) https://github.com/python/cpython/commit/2aa694dd55202eb6d062fdf49c07cf95f8520f2d --

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

Change by STINNER Victor : -- pull_requests: +18124 pull_request: https://github.com/python/cpython/pull/18767 ___ Python tracker ___

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

STINNER Victor added the comment: Another candidate is to revert the ignored "U" mode in open(): commit e471e72977c83664f13d041c78549140c86c92de of bpo-37330. Removing "U" mode of open() broke 11 packages in Fedora: * aubio * openvswitch * python-SALib * python-altgraph * python-apsw *

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

STINNER Victor added the comment: Andrew Bartlett of the Samba project asked to revert the removal of the "U" mode: https://bugs.python.org/issue37330#msg362362 We should consider to revert the removal, and only remove the "U" mode in Python 3.10. --

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

Change by STINNER Victor : -- pull_requests: +18103 pull_request: https://github.com/python/cpython/pull/18748 ___ Python tracker ___

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

Change by STINNER Victor : -- pull_requests: +18102 pull_request: https://github.com/python/cpython/pull/18747 ___ Python tracker ___

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

STINNER Victor added the comment: PR 18552 adds a section to What's New In Python 3.9 to strongly advice to check for DeprecationWarning in your Python projects. -- ___ Python tracker

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

Change by STINNER Victor : -- pull_requests: +17933 pull_request: https://github.com/python/cpython/pull/18552 ___ Python tracker ___

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

STINNER Victor added the comment: New changeset af5ee3ff610377ef446c2d88bbfcbb3dffaaf0c9 by Victor Stinner in branch 'master': bpo-39674: Revert "bpo-25988: Do not expose abstract collection classes in the collections module. (GH-10596)" (GH-18545)

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

Guido van Rossum added the comment: Yes please. I have one exception. I f we manage to get the new parser (pegen) in, we have to remove the old parser module. -- nosy: +gvanrossum ___ Python tracker

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

Change by Jason Madden : -- nosy: +jmadden ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

Change by STINNER Victor : -- keywords: +patch pull_requests: +17922 stage: -> patch review pull_request: https://github.com/python/cpython/pull/18545 ___ Python tracker ___

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

Change by Karthikeyan Singaravelan : -- nosy: +xtreak ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue39674] Keep deprecated features in Python 3.9 to ease migration from Python 2.7, but remove in Python 3.10

New submission from STINNER Victor : Following discussion on python-dev, I propose to revert the removal of a few deprecated functions to keep them in Python 3.9, and only remove them in Python 3.10. Please see the following email for the longer rationale, and the discussion for further