python-zope-exceptions: Build failure (in test_multiline_exception test) with Python 3.10

Hi! Building `python-zope-exceptions` 4.4 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

```

It looks like a Python 3.10 issue fixed in a newer upstream version. This is

the final part of the build log:

```

starting phase `check'

Running zope.testrunner.layer.UnitTests tests:

Set up zope.testrunner.layer.UnitTests in 0.000 seconds.

Failure in test test_multiline_exception (zope.exceptions.tests.test_exceptionformatter.Test_format_exception)

Traceback (most recent call last):

File "/gnu/store/dy3xh053ahkhrp2jamggq8cpsyvp8mg0-python-3.10.7/lib/python3.10/unittest/case.py", line 59, in testPartExecutor

yield

File "/gnu/store/dy3xh053ahkhrp2jamggq8cpsyvp8mg0-python-3.10.7/lib/python3.10/unittest/case.py", line 591, in run

self._callTestMethod(testMethod)

File "/gnu/store/dy3xh053ahkhrp2jamggq8cpsyvp8mg0-python-3.10.7/lib/python3.10/unittest/case.py", line 549, in _callTestMethod

method()

File "/gnu/store/yflssryyj355226m2nq5m4971s88cmpz-python-zope-exceptions-bootstrap-4.4/lib/python3.10/site-packages/zope/exceptions/tests/test_exceptionformatter.py", line 670, in test_multiline_exception

self.assertTrue(lines[1].endswith(' ^'))

File "/gnu/store/dy3xh053ahkhrp2jamggq8cpsyvp8mg0-python-3.10.7/lib/python3.10/unittest/case.py", line 687, in assertTrue

raise self.failureException(msg)

AssertionError: False is not true

```

Looking at the failing line, it looks like the commit below fixed it for

Python 3.10 compatibility:

Probably version >= 4.5 of the package (which claims "Add official support for

Python 3.9 and 3.10." does work (I've been unable to figure out the proper

`--with-XXXX` incantation to assert that).

Thanks!

--

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

Versions 4.5 and 4.6 seem to be backwards-compatible with 4.5, and they add

official support for Python 3.9, 3.10 and 3.11.

Fixes https://issues.guix.gnu.org/63649.

---

gnu/packages/python-web.scm | 5 +++--

1 file changed, 3 insertions(+), 2 deletions(-)

Hi Ivan,

Applied. Thanks!

all best,

jgart