fix(config): replace removed `Actor.name_email_regex` from GitPython by olivialewke · Pull Request #1477 · python-semantic-release/python-semantic-release · GitHub

What

GitPython v3.1.60 (released 2026-08-25) removed the name_email_regex class attribute from git.Actor, replacing its internal use in Actor._from_string with string partitioning. RuntimeContext.from_raw_config() reads it unconditionally, so every command that loads configuration fails with:

AttributeError: type object 'Actor' has no attribute 'name_email_regex'

Since PSR requires gitpython ~= 3.0, fresh installs — including every run of the official GitHub Action, which resolves transitive dependencies at image-build time — pick up the broken version automatically.

How

GitPython no longer exposes a public equivalent, so there is nothing to migrate to. This adds NAME_EMAIL_REGEX to semantic_release.const with the same pattern GitPython used (r"(.*) <(.*?)>") and uses it in the two places Actor.name_email_regex was referenced. Actor is still used to construct the commit author, so behaviour is unchanged — including the error message, which now interpolates .pattern to keep the same readable output.

An alternative would be to pin gitpython < 3.1.60, but that leaves users stranded on a release they may want for its security fixes.

Testing

The existing test_commit_author_configurable already reproduces the failure on GitPython 3.1.60 and passes with this change. Added direct coverage of the pattern itself so a future change to it is caught independently of GitPython.

$ pip install 'gitpython==3.1.60'
$ pytest tests/unit/semantic_release/cli/test_config.py
51 passed

ruff check reports no new findings against these files.

…itpython (#351) GitPython 3.1.60 (2026-08-25) removed Actor.name_email_regex, which semantic_release.cli.config reads unconditionally — every release run now crashes on 'type object Actor has no attribute name_email_regex'. PSR pins gitpython ~= 3.0 (unpinned patch range), and the upstream action's Docker image is rebuilt from PyPI at job start regardless of which action SHA release.yml pins, so this recurs on every push to main until upstream ships python-semantic-release/python-semantic-release#1477. Vendors the action's Dockerfile/action.sh/action.yml unchanged, adding only a gitpython==3.1.59 pin to requirements.txt. Verified locally: the vendored image resolves gitpython 3.1.59 and `semantic-release version` loads config and runs cleanly. Revert to the upstream action once #1477 ships in a release.

oh yeah my CI is also broken

Thanks for submitting this. Very frustrating how someone else's change unidentified breaking change affects this project. Will try to get a new version published today.

Thanks for submitting this. Very frustrating how someone else's change unidentified breaking change affects this project. Will try to get a new version published today.

Thank you!

Thanks for submitting this. Very frustrating how someone else's change unidentified breaking change affects this project. Will try to get a new version published today.

The build is failing on exactly what is being fixed...

I ran a test in my project targeting the forked version of @olivialewke , but I am encountering the same problem.

Run olivialewke/python-semantic-release@fix-gitpython-3.1.60-actor-regex
/usr/local/bin/docker run --name bb84a423dcf1061594106a1d7947eebc21631_96c4bb --label 1bb84a --workdir /github/workspace --rm -e " "INPUT_STRICT" -e "INPUT_VERBOSITY" -e "INPUT_PRERELEASE" -e "INPUT_PRERELEASE_TOKEN" -e "INPUT_FORCE" -e "INPUT_COMMIT" -e "INPUT_CHANGELOG" -e "INPUT_VCS_RELEASE" -e "INPUT_BUILD" -e "INPUT_BUILD_METADATA" -e "HOME" -e "GITHUB_JOB" -e "GITHUB_REF" -e "GITHUB_SHA" -e "GITHUB_REPOSITORY" -e "GITHUB_REPOSITORY_OWNER" -e "GITHUB_REPOSITORY_OWNER_ID" -e "GITHUB_RUN_ID" -e "GITHUB_RUN_NUMBER" -e "GITHUB_RETENTION_DAYS" -e "GITHUB_RUN_ATTEMPT" -e "GITHUB_ACTOR_ID" -e "GITHUB_ACTOR" -e "GITHUB_WORKFLOW" -e "GITHUB_HEAD_REF" -e "GITHUB_BASE_REF" -e "GITHUB_EVENT_NAME" -e "GITHUB_SERVER_URL" -e "GITHUB_API_URL" -e "GITHUB_GRAPHQL_URL" -e "GITHUB_REF_NAME" -e "GITHUB_REF_PROTECTED" -e "GITHUB_REF_TYPE" -e "GITHUB_WORKFLOW_REF" -e "GITHUB_WORKFLOW_SHA" -e "GITHUB_REPOSITORY_ID" -e "GITHUB_TRIGGERING_ACTOR" -e "GITHUB_WORKSPACE" -e "GITHUB_ACTION" -e "GITHUB_EVENT_PATH" -e "GITHUB_ACTION_REPOSITORY" -e "GITHUB_ACTION_REF" -e "GITHUB_PATH" -e "GITHUB_ENV" -e "GITHUB_STEP_SUMMARY" -e "GITHUB_STATE" -e "GITHUB_OUTPUT" -e "GITHUB_ARTIFACTS" -e "GITHUB_ARTIFACTS_LIST" -e "RUNNER_OS" -e "RUNNER_ARCH" -e "RUNNER_NAME" -e "RUNNER_ENVIRONMENT" -e "RUNNER_TOOL_CACHE" -e "RUNNER_TEMP" -e "RUNNER_WORKSPACE" -e "ACTIONS_RUNTIME_URL" -e "ACTIONS_RUNTIME_TOKEN" -e "ACTIONS_CACHE_URL" -e "ACTIONS_ID_TOKEN_REQUEST_URL" -e "ACTIONS_ID_TOKEN_REQUEST_TOKEN" -e "ACTIONS_RESULTS_URL" -e "ACTIONS_ORCHESTRATION_ID" -e GITHUB_ACTIONS=true -e CI=true -v "/var/run/docker.sock":"/var/run/docker.sock" -v "/codebuild/output/src2915708411/src/actions-runner/_work/_temp":"/github/runner_temp" -v "/codebuild/output/src2915708411/src/actions-runner/_work/_temp/_github_home":"/github/home" -v "/codebuild/output/src2915708411/src/actions-runner/_work/_temp/_github_workflow":"/github/workflow" -v "/codebuild/output/src2915708411/src/actions-runner/_work/_temp/_runner_file_commands":"/github/file_commands" -v "/codebuild/output/src2915708411/src/actions-runner/_work/pdnd-airflow-dags/pdnd-airflow-dags":"/github/workspace" 1bb84a:423dcf1061594106a1d7947eebc21631
$> /opt/psr/.venv/bin/semantic-release -v version --tag --push
[10:35:05] INFO     Loading configuration from pyproject.toml         util.py:77
           WARNING  Found .git/ in higher parent directory rather  config.py:412
                    than provided in configuration.                             
           INFO     Using group 'main' options, as '(main)'        config.py:603
                    matches 'main'                                              
Error:  type object 'Actor' has no attribute 'name_email_regex'
Run semantic-release in very verbose mode (-vv) to see the full traceback.

GitPython 3.1.61 has been released & bring back, adding a deprecation notice, the unwanted breaking change in gitpython-developers/GitPython#2221

So I guess that this should be fixed, though it would be better to still handle this since the field is deprecated & will be removed in next major release (4.x)

So I guess that this shoudl be fixed,

My PSR just finished successful again :-)

With the change in GitPython v3.1.60, they removed the regex for a commit author string, so we must do it ourselves. Resolves: python-semantic-release#1476

🎉 This PR has been published as part of v10.6.2 🎉

You can find more information about this release on the GitHub Releases page.

elliotloftus approved these changes Aug 25, 2026

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AlexTranAmz mentioned this pull request Aug 25, 2026

chore: pin GitPython for release bump OpenJobDescription/openjd-model-for-python#339

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qthequartermasterman approved these changes Aug 26, 2026

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aaaaahaaaaa mentioned this pull request Aug 26, 2026

fix(ci): pin GitPython below 3.1.60 in the release step digitl-cloud/interloper#280

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karlspace mentioned this pull request Aug 26, 2026

fix(ci): removed the PSR GitPython compat shim bauer-group/automation-templates#80

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3 tasks

This was referenced Aug 26, 2026

Release workflow failed on main OpenAdaptAI/openadapt-evals#298

Open

feat(ci): propose the next release as a reviewable pull request OpenAdaptAI/openadapt-evals#301

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karthikbekalp mentioned this pull request Aug 26, 2026

chore: pin gitpython below 3.1.60 for release bump aws-deadline/deadline-cloud-test-fixtures#324

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shawnoster mentioned this pull request Aug 26, 2026

chore: revert the vendored semantic-release action once upstream fixes the GitPython pin shawnoster/aya#352

Open

kavmur mentioned this pull request Aug 26, 2026

fix: prepare Unreal 5.8 release defaults aws-deadline/deadline-cloud-for-unreal-engine#377

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calmez mentioned this pull request Aug 27, 2026

AttributeError: type object 'Actor' has no attribute 'name_email_regex' (GitPython 3.1.60) #1475

Closed

shyamsundar-shipzero approved these changes Aug 27, 2026

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cyang7381 approved these changes Aug 27, 2026

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htkuan mentioned this pull request Aug 27, 2026

ci(release): pin gitpython below 3.1.60 so semantic-release can load config htkuan/ai-agent-bridge#68

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bdraco mentioned this pull request Aug 27, 2026

0.150.0: cython 3.3.0 breaks build python-zeroconf/python-zeroconf#1818

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renatoaug approved these changes Aug 27, 2026

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rbavery mentioned this pull request Aug 27, 2026

Undeclared breaking change affects python semantic release gitpython-developers/GitPython#2220

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abrichr mentioned this pull request Aug 27, 2026

fix: lock the semantic release runtime OpenAdaptAI/openadapt-tray#46

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JonZeolla mentioned this pull request Aug 27, 2026

ci(release): pin GitPython so releases can run again Zenable-io/ai-guardrails#26

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bdraco mentioned this pull request Aug 28, 2026

fix: keep key= distinct from a valueless key in TXT records python-zeroconf/python-zeroconf#1813

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This was referenced Aug 28, 2026

Unpin python-semantic-release version in release.yaml once upstream fix lands rodekruis/qualitative-feedback-analysis#302

Closed

Revert workaround: restore the python-semantic-release GitHub Action in release.yaml rodekruis/qualitative-feedback-analysis#303

Open

test(config): add unit tests for config loading of commit author

8d3bf1d

codejedi365 force-pushed the fix-gitpython-3.1.60-actor-regex branch from 4ad93f1 to ed6b1cb Compare August 28, 2026 19:29

fix(config): validate commit author in config internally

de86e16

With the change in GitPython v3.1.60, they removed the regex for a commit author string, so we must do it ourselves. Resolves: python-semantic-release#1476

codejedi365 force-pushed the fix-gitpython-3.1.60-actor-regex branch from ed6b1cb to de86e16 Compare August 28, 2026 19:46

codejedi365 merged commit 10afa8e into python-semantic-release:master Aug 28, 2026
9 checks passed

fix(config): replace removed `Actor.name_email_regex` from GitPython by olivialewke · Pull Request #1477 · python-semantic-release/python-semantic-release · GitHub

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fix(config): replace removed Actor.name_email_regex from GitPython - #1477

fix(config): replace removed Actor.name_email_regex from GitPython#1477
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fix(config): replace removed `Actor.name_email_regex` from GitPython by olivialewke · Pull Request #1477 · python-semantic-release/python-semantic-release · GitHub

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fix(config): replace removed Actor.name_email_regex from GitPython - #1477

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olivialewke commented Aug 25, 2026

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🎉 This PR has been published as part of v10.6.2 🎉

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