Run mypy_test for 3.14 on Python 3.13 for now

Author: srittau

.github/workflows/tests.yml

@@ -61,7 +61,8 @@ jobs:
     strategy:
       matrix:
         platform: ["linux", "win32", "darwin"]
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14-dev"]
+        # TODO (2025-05-10) "3.13.2" should be "3.14-dev", see below.
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.13.2"]
       fail-fast: false
     steps:
       - uses: actions/checkout@v4
@@ -77,7 +78,14 @@ jobs:
               printf "Installing APT packages:\n  $(echo $DEPENDENCIES | sed 's/ /\n  /g')\n"
               sudo apt-get install -qy $DEPENDENCIES
           fi
-      - run: |
+      - name: Run mypy_test.py
+        run: |
+          # TODO: (2025-05-10) This is a bad hack to work around mypy crashing
+          # when running on Python 3.14. See https://github.com/python/mypy/pull/19020.
+          if [[ "${{ matrix.python-version }}" == "3.12.2" ]]; then
+              MYPY_PY_VERSION="3.14-dev"
+          fi
+
           # python-version can sometimes be pinned to a specific version or to "-dev", but
           # mypy understands only X.Y version numbers.
           MYPY_PY_VERSION=$(echo ${{ matrix.python-version }} | cut -d - -f 1 | cut -d . -f 1-2)