Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

lib2to3 will be removed in Python 3.10 #2086

Closed
hroncok opened this issue May 3, 2020 · 4 comments · Fixed by #2731 or 4dn-dcic/snovault#206
Closed

lib2to3 will be removed in Python 3.10 #2086

hroncok opened this issue May 3, 2020 · 4 comments · Fixed by #2731 or 4dn-dcic/snovault#206

Comments

@hroncok
Copy link
Contributor

hroncok commented May 3, 2020

See also #2081

The standard library module lib2to3 is deprecated and will be removed in Python 3.10.

https://bugs.python.org/issue40360

lib2to3 will likely become an external library available from PyPI, but my guess is that setuptools don't want to have more dependencies.
@hroncok
Copy link
Contributor Author

hroncok commented May 3, 2020

Here is what I think might be a path forward:

In the next setuptools release, using use_2to3 will become deprecated as well (with no set removal date). On Python 3.10, setuptools will have optional dependency (e.g. via setuptools[use_2to3]) on the 3rd party lib2to3 module to keep supporting installing old packages.

@hroncok hroncok mentioned this issue May 3, 2020
Closed
@jaraco
Copy link
Member

jaraco commented May 10, 2020

On Python 3.10, setuptools will have optional dependency (e.g. via setuptools[use_2to3]) on the 3rd party lib2to3 module to keep supporting installing old packages.

I'd prefer simply to drop support for building with 2to3 support and to require those old packages to be built on old versions of setuptools (or not at all). Regardless, let's get the deprecation in ASAP as possible to signal to users to stop using it.

jaraco added a commit that referenced this issue May 10, 2020
@jaraco
Emit deprecation warning when 2to3 is used. Ref #2086.
2d607a9
@jaraco jaraco mentioned this issue May 10, 2020
Merged
@graingert
Copy link
Contributor

I'm getting build failures because of this lib2to3 use https://github.com/twisted/ldaptor/runs/1205572060#step:12:103 so I'm in favour of it being removed.

note, you could use fissix instead of lib2to3, if you still wanted to support on the fly translation

@graingert graingert mentioned this issue Oct 4, 2020
Merged
2 tasks
openstack-mirroring pushed a commit to openstack/pbr that referenced this issue Oct 19, 2020
@fungi
Remove use_2to3 backward compat for Setuptools
242f7bd 
Odds are this was never used by any PBR-based projects, but was
included from the beginning to support a feature of Setuptools for a
utility which has been long since discouraged. As of Setuptools
46.2.0 and Python 3.9 it's generating deprecation warnings, and is
slated for removal from the Python 3.10 standard library.

https://bugs.python.org/issue40360
pypa/setuptools#2086

Change-Id: I6972984f29413d2534d802b142fa9323a7e4a4a3
openstack-mirroring pushed a commit to openstack/openstack that referenced this issue Oct 19, 2020
@openstack-gerrit
Update git submodules
b94e7b1 
* Update pbr from branch 'master'
  - Merge "Remove use_2to3 backward compat for Setuptools"
  - Remove use_2to3 backward compat for Setuptools
    
    Odds are this was never used by any PBR-based projects, but was
    included from the beginning to support a feature of Setuptools for a
    utility which has been long since discouraged. As of Setuptools
    46.2.0 and Python 3.9 it's generating deprecation warnings, and is
    slated for removal from the Python 3.10 standard library.
    
    https://bugs.python.org/issue40360
    pypa/setuptools#2086
    
    Change-Id: I6972984f29413d2534d802b142fa9323a7e4a4a3
archlinux-github pushed a commit to archlinux/svntogit-community that referenced this issue Nov 13, 2020
buildbot: fix check() with Python 3.9
2f280a0 
Upstream issue: pypa/setuptools#2086

git-svn-id: file:///srv/repos/svn-community/svn@753826 9fca08f4-af9d-4005-b8df-a31f2cc04f65
archlinux-github pushed a commit to archlinux/svntogit-community that referenced this issue Nov 13, 2020
buildbot: fix check() with Python 3.9
0f57161 
Upstream issue: pypa/setuptools#2086



git-svn-id: file:///srv/repos/svn-community/svn@753826 9fca08f4-af9d-4005-b8df-a31f2cc04f65
@yan12125 yan12125 mentioned this issue Nov 14, 2020
Merged
3 tasks
@graingert graingert mentioned this issue Jul 18, 2021
Closed
@graingert
Copy link
Contributor

lib2to3 is still in Python3.10 as of Python 3.10.0b4 (default, Jul 12 2021, 22:16:23) [GCC 9.3.0] on linux

@graingert graingert mentioned this issue Jul 18, 2021
Merged
2 tasks
@techdragon techdragon mentioned this issue Sep 6, 2021
Open
@IrinaAlexandra IrinaAlexandra mentioned this issue Sep 6, 2021
Closed
@jorgenader jorgenader mentioned this issue Sep 6, 2021
Closed
@Wim-De-Clercq Wim-De-Clercq mentioned this issue Sep 6, 2021
Closed
@c00kiemon5ter c00kiemon5ter mentioned this issue Sep 6, 2021
Open
torbsorb referenced this issue in jimo1001/docutils-ast-writer Sep 7, 2021
@seikichi
Support Python 3.x by using the use_2to3 option
a0af798 
This library does not support Python 3.x
because it uses `unicode` and `long` functions in `writer.py`.

Fix the problem by using the `use_2to3` option in `setup.py`.
@torbsorb torbsorb mentioned this issue Sep 7, 2021
Closed
@jamadden jamadden mentioned this issue Sep 7, 2021
Closed
@edgarrmondragon edgarrmondragon mentioned this issue Sep 8, 2021
Closed
2 tasks
@krisgesling krisgesling mentioned this issue Sep 9, 2021
Merged
12 tasks
@graingert graingert mentioned this issue Sep 9, 2021
Merged
@github-germ github-germ mentioned this issue Sep 10, 2021
Closed
@ajnelson-nist ajnelson-nist mentioned this issue Sep 13, 2021
Closed
1 task
@brettlangdon brettlangdon mentioned this issue Sep 16, 2021
Merged
@willronchetti willronchetti mentioned this issue Sep 20, 2021
Merged
@otemek otemek mentioned this issue Sep 21, 2021
Closed
@micah-prime micah-prime mentioned this issue Oct 6, 2021
Closed
@cho-m cho-m mentioned this issue Oct 10, 2021
Closed
@bishax bishax mentioned this issue Oct 25, 2021
Open
@jwilk jwilk mentioned this issue Oct 25, 2021
Closed
@jimallman jimallman mentioned this issue Oct 27, 2021
Merged
halstead pushed a commit to openembedded/openembedded-core that referenced this issue Nov 8, 2021
@yizhao1 @rpurdie
python3-nose: translate to python3 code before build
11214c2 
Setuptools has removed support for 2to3 during builds since version
58[1]. But the nose's setup.py relies on use_2to3 option in setuptools,
it is failing an import and building without running 2to3 and generating
valid python3 code. As a workaround, we use command line 2to3 tool to
translate to Python3 code before build it.

Fixes:
$ python3
>>> import nose
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3.10/site-packages/nose/_init_.py", line 1, in <module>
from nose.core import collector, main, run, run_exit, runmodule
File "/usr/lib/python3.10/site-packages/nose/core.py", line 153
print "%s version %s" % (os.path.basename(sys.argv[0]), _version_)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
SyntaxError: Missing parentheses in call to 'print'. Did you mean print(...)?
>>>

[1] pypa/setuptools#2086

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
kraj pushed a commit to YoeDistro/poky-old that referenced this issue Nov 8, 2021
@yizhao1 @rpurdie
python3-nose: translate to python3 code before build
97b6287 
Setuptools has removed support for 2to3 during builds since version
58[1]. But the nose's setup.py relies on use_2to3 option in setuptools,
it is failing an import and building without running 2to3 and generating
valid python3 code. As a workaround, we use command line 2to3 tool to
translate to Python3 code before build it.

Fixes:
$ python3
>>> import nose
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3.10/site-packages/nose/_init_.py", line 1, in <module>
from nose.core import collector, main, run, run_exit, runmodule
File "/usr/lib/python3.10/site-packages/nose/core.py", line 153
print "%s version %s" % (os.path.basename(sys.argv[0]), _version_)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
SyntaxError: Missing parentheses in call to 'print'. Did you mean print(...)?
>>>

[1] pypa/setuptools#2086

(From OE-Core rev: 11214c2de3282acb3a0fd28884d1a9c54c1c284a)

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
kraj pushed a commit to YoeDistro/poky-old that referenced this issue Nov 8, 2021
@yizhao1 @rpurdie
python3-nose: translate to python3 code before build
fa93561 
Setuptools has removed support for 2to3 during builds since version
58[1]. But the nose's setup.py relies on use_2to3 option in setuptools,
it is failing an import and building without running 2to3 and generating
valid python3 code. As a workaround, we use command line 2to3 tool to
translate to Python3 code before build it.

Fixes:
$ python3
>>> import nose
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3.10/site-packages/nose/_init_.py", line 1, in <module>
from nose.core import collector, main, run, run_exit, runmodule
File "/usr/lib/python3.10/site-packages/nose/core.py", line 153
print "%s version %s" % (os.path.basename(sys.argv[0]), _version_)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
SyntaxError: Missing parentheses in call to 'print'. Did you mean print(...)?
>>>

[1] pypa/setuptools#2086

(From OE-Core rev: 11214c2de3282acb3a0fd28884d1a9c54c1c284a)

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
JostMigenda added a commit to SNEWS2/snewpy that referenced this issue Dec 14, 2021
@JostMigenda
update setup.py
dba86d5 
* updated metadata
* remove unused imports
* remove deprecated argument, see pypa/setuptools#2086
@edmorley edmorley mentioned this issue Jan 14, 2022
Closed
@cyamato cyamato mentioned this issue Jan 18, 2022
Closed
ascherer97 referenced this issue in ascherer97/python-airsea Apr 20, 2022
@ascherer97
Update setup.py
8ae1613
@uwohlfeil uwohlfeil mentioned this issue May 4, 2022
Open
@fabianlim fabianlim mentioned this issue May 31, 2022
Merged
@deamwork deamwork mentioned this issue Jun 15, 2022
Open
@bje- bje- mentioned this issue Aug 2, 2022
Closed
@KJSanchez KJSanchez mentioned this issue Aug 26, 2022
Closed
This was referenced Nov 17, 2022
Closed
Open
@liuchong liuchong mentioned this issue Nov 21, 2022
Open
@github-actions github-actions bot mentioned this issue Nov 30, 2022
Closed
@PaulScemama PaulScemama mentioned this issue Feb 28, 2023
Closed
@wm1995 wm1995 mentioned this issue Mar 27, 2023
Closed
@SirTakobi SirTakobi mentioned this issue Jul 18, 2023
Closed
1 task
@sergiocorato sergiocorato mentioned this issue Jul 18, 2023
Merged
@abravalheri abravalheri mentioned this issue Sep 29, 2023
Closed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

Successfully merging a pull request may close this issue.

remove lib2to3 usage graingert/setuptools
Repair 2to3 Issues 4dn-dcic/snovault
3 participants
@jaraco @graingert @hroncok