Subject: bug#63313: closed (re: python-txtorcon: Build failure (Sequence not in collection in Python 3.10))

From: [email-masked] (GNU bug Tracking System)
Date: Thu, 27 Jul 2023 03:58:02 +0000

Your bug report

#63313: python-txtorcon: Build failure (Sequence not in collection in Python 3.10)

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to [email-masked].

-- 
63313: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=63313
GNU Bug Tracking System
Contact [email-masked] with problems

Subject: re: python-txtorcon: Build failure (Sequence not in collection in Python 3.10)
From: Juliana Sims <[email-masked]>
To: [email-masked]
Date: Wed, 26 Jul 2023 23:57:06 -0400
List-Id: <debbugs-submit.debbugs.gnu.org>

The aforementioned patch has been merged.

Subject: python-txtorcon: Build failure (Sequence not in collection in Python 3.10)
From: Ivan Vilata i Balaguer <[email-masked]>
To: [email-masked]
Date: Fri, 5 May 2023 19:49:43 +0200
List-Id: <debbugs-submit.debbugs.gnu.org>

Hi!  Building `python-txtorcon` 19.0.0 fails in the version of Guix shown
below:

```
$ LANG=C guix describe
Generation 56   May 02 2023 11:25:26    (current)
  guix 3f8c489
    repository URL: https://git.savannah.gnu.org/git/guix.git
    branch: master
    commit: 3f8c4899a9a67bb509a603bd21dcfcfab88c0e8e
```

This is not <https://issues.guix.gnu.org/62924>, but an error caused by Python
3.10 completely removing abstract classes from `collections`.  This is the
final part of the build log:

```
starting phase `sanity-check'
validating 'txtorcon' /gnu/store/082pb14w482w6i175p7dxzwj60wnsqjs-python-txtorcon-19.0.0/lib/python3.10/site-packages
...checking requirements: OK
...trying to load module twisted: OK
...trying to load module txtorcon: ERROR:
Traceback (most recent call last):
  File "/gnu/store/iqsjkp55pcx5bfcp2jm9yj5rlx9a0whd-sanity-check.py", line 73, in <module>
    importlib.import_module(name)
  File "/gnu/store/dy3xh053ahkhrp2jamggq8cpsyvp8mg0-python-3.10.7/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 883, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/gnu/store/082pb14w482w6i175p7dxzwj60wnsqjs-python-txtorcon-19.0.0/lib/python3.10/site-packages/txtorcon/__init__.py", line 16, in <module>
    from txtorcon.controller import connect
  File "/gnu/store/082pb14w482w6i175p7dxzwj60wnsqjs-python-txtorcon-19.0.0/lib/python3.10/site-packages/txtorcon/controller.py", line 14, in <module>
    from collections import Sequence
ImportError: cannot import name 'Sequence' from 'collections' (/gnu/store/dy3xh053ahkhrp2jamggq8cpsyvp8mg0-python-3.10.7/lib/python3.10/collections/__init__.py)
error: in phase 'sanity-check': uncaught exception:
%exception #<&invoke-error program: "python" arguments: ("/gnu/store/iqsjkp55pcx5bfcp2jm9yj5rlx9a0whd-sanity-check.py" "/gnu/store/082pb14w482w6i175p7dxzwj60wnsqjs-python-txtorcon-19.0.0/lib/python3.10/site-packages") exit-status: 1 term-signal: #f stop-signal: #f> 
phase `sanity-check' failed after 0.7 seconds
command "python" "/gnu/store/iqsjkp55pcx5bfcp2jm9yj5rlx9a0whd-sanity-check.py" "/gnu/store/082pb14w482w6i175p7dxzwj60wnsqjs-python-txtorcon-19.0.0/lib/python3.10/site-packages" failed with status 1
```

It was reported in <https://github.com/meejah/txtorcon/issues/336> and fixed
in <https://github.com/meejah/txtorcon/commit/cc7ed186>, and incorporated to
version 20.0.0 as noted here:
<https://github.com/meejah/txtorcon/releases/tag/v20.0.0>.

Thanks and good weekend!

-- 
Ivan Vilata i Balaguer -- https://elvil.net/