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Bug 1891793 - python-ephem fails to build with Python 3.10: SystemError: PY_SSIZE_T_CLEAN macro must be defined for '#' formats [test was disabled]
Summary: python-ephem fails to build with Python 3.10: SystemError: PY_SSIZE_T_CLEAN m...
Status: POST
Alias: None
Product: Fedora
Classification: Fedora
Component: python-ephem
Version: rawhide
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Fabian Affolter
QA Contact: Fedora Extras Quality Assurance
Depends On:
Blocks: PYTHON3.10
TreeView+ depends on / blocked
Reported: 2020-10-27 11:43 UTC by Tomáš Hrnčiar
Modified: 2021-06-14 09:51 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed:
Type: Bug

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Github brandon-rhodes pyephem issues 190 0 None open DeprecationWarning: PY_SSIZE_T_CLEAN will be required for '#' formats 2021-03-29 09:02:16 UTC

Description Tomáš Hrnčiar 2020-10-27 11:43:11 UTC
python-ephem fails to build with Python 3.10.0a1.

=================================== FAILURES ===================================
_______________________ FunctionTests.test_constellation _______________________

self = <ephem.tests.test_bodies.FunctionTests testMethod=test_constellation>

    def test_constellation(self):
        oneb = readdb('Orion Nebula,f,5.59,-5.45,2,2000.0,')
>       self.assertEqual(constellation(oneb), ('Ori', 'Orion'))
E       SystemError: PY_SSIZE_T_CLEAN macro must be defined for '#' formats

tests/ SystemError
=============================== warnings summary ===============================
  /builddir/build/BUILDROOT/python-ephem- PytestCollectionWarning: cannot collect test class 'TestError' because it has a __init__ constructor (from: tests/
    class TestError(Exception):

  /builddir/build/BUILDROOT/python-ephem- DeprecationWarning: Please use assertRaisesRegex instead.
    self.assertRaisesRegexp(ValueError, expected, ephem.readtle, *lines)

-- Docs:
=========================== short test summary info ============================
FAILED tests/ - SystemError:...
====== 1 failed, 131 passed, 2 skipped, 2 deselected, 2 warnings in 2.26s ======
error: Bad exit status from /var/tmp/rpm-tmp.J50m0s (%check)
    Bad exit status from /var/tmp/rpm-tmp.J50m0s (%check)

For the build logs, see:

For all our attempts to build python-ephem with Python 3.10, see:

Testing and mass rebuild of packages is happening in copr. You can follow these instructions to test locally in mock if your package builds with Python 3.10:

Let us know here if you have any questions.

Python 3.10 will be included in Fedora 35. To make that update smoother, we're building Fedora packages with early pre-releases of Python 3.10.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires), so if this package is required a lot, it's important for us to get it fixed soon.
We'd appreciate help from the people who know this package best, but if you don't want to work on this now, let us know so we can try to work around it on our side.

Comment 1 Miro Hrončok 2020-10-27 12:15:05 UTC

The PY_SSIZE_T_CLEAN macro must now be defined to use PyArg_ParseTuple() and Py_BuildValue() formats which use #: es#, et#, s#, u#, y#, z#, U# and Z#. See Parsing arguments and building values and the PEP 353.

Comment 2 Ben Cotton 2021-02-09 15:21:45 UTC
This bug appears to have been reported against 'rawhide' during the Fedora 34 development cycle.
Changing version to 34.

Comment 3 Miro Hrončok 2021-06-04 20:13:37 UTC
This is a mass-posted update. Sorry if it is not 100% accurate to this bugzilla.

The Python 3.10 rebuild is in progress in a Koji side tag. If you manage to fix the problem, please commit the fix in the rawhide branch, but don't build the package in regular rawhide.

You can either build the package in the side tag, with:

    $ fedpkg build --target=f35-python

Or you can the build and we will eventually build it for you.

Note that the rebuild is still in progress, so not all (build) dependencies of this package might be available right away.


See also

If you have general questions about the rebuild, please use this mailing list thread:

Comment 4 Miro Hrončok 2021-06-07 22:58:23 UTC
The f35-python side tag has been merged to Rawhide. From now on, build as you would normally build.

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