Hacktoberfest 2026: the issues maintainers tagged for October, open and beginner-friendly. Browse Hacktoberfest issues

journal.Reader.add_match breaks on python>=3.10

Open
#122 5 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
42/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
c, python

Research direction

Reproduce the failure with the Python snippet and inspect journal.py at Reader.add_match, then consult the linked CPython issue for the Python 3.10 compatibility requirement. Done means the add_match call accepts the systemd unit match without raising SystemError on Python 3.10 or newer.

Written by the indexing model from the issue text.

Description

Minimal repro:

from systemd import journal

j = journal.Reader()
j.add_match(_SYSTEMD_UNIT="httpd.service")

Error:

Traceback (most recent call last):
  File "/home/dobby/project/server/./server.py", line 14, in <module>
    j.add_match(_SYSTEMD_UNIT="httpd.service")
  File "/home/dobby/.local/share/virtualenvs/server-dx5eltbR/lib64/python3.11/site-packages/systemd/journal.py", line 244, in add_match
    super(Reader, self).add_match(arg)
SystemError: PY_SSIZE_T_CLEAN macro must be defined for '#' formats

See python/cpython#85115 for more info.

Dominant language
C
Stars
522
Forks
79
PR merge metrics
No merged PRs in 30d

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

More from systemd/python-systemd

All issues in systemd/python-systemd

Similar issues

More C issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.