DO NOT MERGE: Test Python 3.14

.github/workflows/build.yml

@@ -9,6 +9,13 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
+      - run:
+          sudo apt-get update && sudo apt-get install -y libtiff5-dev libjpeg8-dev libopenjp2-7-dev
+          zlib1g-dev libfreetype6-dev liblcms2-dev libwebp-dev tcl8.6-dev tk8.6-dev python3-tk
+          libharfbuzz-dev libfribidi-dev libxcb1-dev
+          libxml2-dev libxslt-dev
+          libhdf5-dev
+          libopenblas-dev
       - uses: actions/checkout@v4
       - uses: astral-sh/setup-uv@v6
         with:
@@ -16,7 +23,7 @@ jobs:
           cache-dependency-glob: uv.lock
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.13
+          python-version: 3.14
           allow-prereleases: true
       - run: uv sync --group=test
       - name: Run tests

.github/workflows/directory_writer.yml

@@ -11,7 +11,8 @@ jobs:
           fetch-depth: 0
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.x
+          python-version: 3.14
+          allow-prereleases: true
       - name: Write DIRECTORY.md
         run: |
           scripts/build_directory_md.py 2>&1 | tee DIRECTORY.md

.github/workflows/project_euler.yml

@@ -14,21 +14,37 @@ jobs:
   project-euler:
     runs-on: ubuntu-latest
     steps:
+      - run:
+          sudo apt-get update && sudo apt-get install -y libtiff5-dev libjpeg8-dev libopenjp2-7-dev
+          zlib1g-dev libfreetype6-dev liblcms2-dev libwebp-dev tcl8.6-dev tk8.6-dev python3-tk
+          libharfbuzz-dev libfribidi-dev libxcb1-dev
+          libxml2-dev libxslt-dev
+          libhdf5-dev
+          libopenblas-dev
       - uses: actions/checkout@v4
       - uses: astral-sh/setup-uv@v6
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.x
+          python-version: 3.14
+          allow-prereleases: true
       - run: uv sync --group=euler-validate --group=test
       - run: uv run pytest --doctest-modules --cov-report=term-missing:skip-covered --cov=project_euler/ project_euler/
   validate-solutions:
     runs-on: ubuntu-latest
     steps:
+      - run:
+          sudo apt-get update && sudo apt-get install -y libtiff5-dev libjpeg8-dev libopenjp2-7-dev
+          zlib1g-dev libfreetype6-dev liblcms2-dev libwebp-dev tcl8.6-dev tk8.6-dev python3-tk
+          libharfbuzz-dev libfribidi-dev libxcb1-dev
+          libxml2-dev libxslt-dev
+          libhdf5-dev
+          libopenblas-dev
       - uses: actions/checkout@v4
       - uses: astral-sh/setup-uv@v6
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.x
+          python-version: 3.14
+          allow-prereleases: true
       - run: uv sync --group=euler-validate --group=test
       - run: uv run pytest scripts/validate_solutions.py
         env:

.github/workflows/sphinx.yml

@@ -25,11 +25,18 @@ jobs:
   build_docs:
     runs-on: ubuntu-24.04-arm
     steps:
+      - run:
+          sudo apt-get update && sudo apt-get install -y libtiff5-dev libjpeg8-dev libopenjp2-7-dev
+          zlib1g-dev libfreetype6-dev liblcms2-dev libwebp-dev tcl8.6-dev tk8.6-dev python3-tk
+          libharfbuzz-dev libfribidi-dev libxcb1-dev
+          libxml2-dev libxslt-dev
+          libhdf5-dev
+          libopenblas-dev
       - uses: actions/checkout@v4
       - uses: astral-sh/setup-uv@v6
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.13
+          python-version: 3.14
           allow-prereleases: true
       - run: uv sync --group=docs
       - uses: actions/configure-pages@v5