src/diffinsights_web/apps/explore_author.py:347:19: F541 f-string without any placeholders help: Remove extraneous `f` prefix

src/diffinsights_web/02-contributors_graph.py:571:18: invalid-syntax: Cannot use named assignment expression (`:=`) on Python 3.7 (syntax was added in Python 3.8)

src/diffannotator/utils/git.py:1362:16: invalid-syntax: Cannot use named assignment expression (`:=`) on Python 3.7 (syntax was added in Python 3.8)

src/diffannotator/utils/git.py:460:12: invalid-syntax: Cannot use named assignment expression (`:=`) on Python 3.7 (syntax was added in Python 3.8)

src/diffannotator/utils/git.py:21:8: F401 `functools` imported but unused help: Remove unused import: `functools`

src/diffannotator/lexer.py:33:30: F401 `pygments.util` imported but unused help: Remove unused import: `pygments.util`

src/diffannotator/gather_data.py:61:27: F401 `_typeshed.SupportsWrite` imported but unused help: Remove unused import: `_typeshed.SupportsWrite`

src/diffannotator/annotate.py:2149:29: F841 Local variable `ex` is assigned to but never used help: Remove assignment to unused variable `ex`

src/diffannotator/annotate.py:1601:41: F841 Local variable `ex` is assigned to but never used help: Remove assignment to unused variable `ex`

src/diffannotator/annotate.py:52:27: F401 `_typeshed.SupportsWrite` imported but unused help: Remove unused import: `_typeshed.SupportsWrite`

Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/cache/restore@v4, actions/cache/save@v4, actions/checkout@v4, actions/setup-python@v5. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/