chore: drop Python 3.9 support

.github/workflows/ci.yml

@@ -14,7 +14,6 @@ jobs:
     strategy:
       matrix:
         python:
-          - "3.9"
           - "3.10"
           - "3.11"
           - "3.12"

.github/workflows/listgen.yml

@@ -13,102 +13,6 @@ on:
 permissions: {}
 
 jobs:
-  pre-list-legacy:
-    strategy:
-      matrix:
-        python:
-          - "3.9"
-
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-        with:
-          persist-credentials: false
-
-      - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
-        with:
-          # NOTE: matrix.python is intentionally not used here.
-          python-version: "3.x"
-
-      - name: support deps
-        run: make dev INSTALL_EXTRA=support
-
-      - name: build pre-list
-        env:
-          LISTGEN_PYTHON_VERSION: "${{ matrix.python }}"
-        run: |
-          ./env/bin/python ./support/fetch-sphinx.py "${LISTGEN_PYTHON_VERSION}" > pre-list.txt
-
-      - name: upload pre-list
-        uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4 # v5.0.0
-        with:
-          name: pre-list-${{ matrix.python }}
-          path: pre-list.txt
-
-  expand-list-legacy:
-    needs: pre-list-legacy
-    strategy:
-      matrix:
-        python:
-          # - "3.7" # EOL
-          # - "3.8" # EOL
-          - "3.9"
-
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-        with:
-          persist-credentials: false
-
-      - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
-        with:
-          python-version: ${{ matrix.python }}
-
-      - uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 # v6.0.0
-        with:
-          name: pre-list-${{ matrix.python }}
-
-      - name: walk modules
-        env:
-          LISTGEN_PYTHON_VERSION: ${{ matrix.python }}
-          LISTGEN_DRY_RUN: ${{ inputs.dry-run }}
-        run: |
-          python ./support/walk-modules.py "${LISTGEN_PYTHON_VERSION}.txt" < pre-list.txt
-          rm pre-list.txt
-
-          if [[ -f "./stdlib_list/lists/"${LISTGEN_PYTHON_VERSION}.txt"" ]]; then
-            sort -u -o ./stdlib_list/lists/"${LISTGEN_PYTHON_VERSION}.txt" \
-              ./stdlib_list/lists/"${LISTGEN_PYTHON_VERSION}.txt" \
-              "${LISTGEN_PYTHON_VERSION}.txt"
-          else
-            sort -u -o ./stdlib_list/lists/"${LISTGEN_PYTHON_VERSION}.txt" \
-              "${LISTGEN_PYTHON_VERSION}.txt"
-          fi
-
-          rm "${LISTGEN_PYTHON_VERSION}.txt"
-
-          if [[ "${LISTGEN_DRY_RUN}" == "true" ]]; then
-            git diff
-          fi
-
-      - name: create PR
-        if: ${{ !inputs.dry-run }}
-        uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e # v7.0.8
-        with:
-          commit-message: "[BOT] update list for ${{ matrix.python }}"
-          branch: update-stdlib-list-${{ matrix.python }}
-          base: main
-          branch-suffix: timestamp
-          title: "[BOT] update list for ${{ matrix.python }}"
-          body: |
-            This is an automated pull request, updating `${{ matrix.python }}.txt` after a detected change.
-
-            Please review manually before merging.
-          assignees: "woodruffw"
-          reviewers: "woodruffw"
-
   expand-list:
     strategy:
       matrix:

pyproject.toml

@@ -24,7 +24,7 @@ classifiers = [
     "Topic :: Software Development :: Libraries :: Python Modules",
 ]
 dependencies = []
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 
 [project.urls]
 Homepage = "https://pypi.org/project/stdlib-list/"
@@ -37,8 +37,6 @@ test = ["pytest", "pytest-cov", "coverage[toml]"]
 lint = ["mypy", "ruff"]
 doc = ["sphinx", "furo"]
 dev = ["build", "stdlib-list[test,lint,doc]"]
-# CI only: used for list generation for Python versions < 3.10.
-support = ["sphobjinv"]
 
 [tool.mypy]
 allow_redefinition = true