Jun 21, 2025
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
      contents: read
    name: "Python ${{ matrix.python-version }} on ${{ matrix.os }} ${{ matrix.name-suffix }}"
    runs-on: ${{ matrix.os }}
    continue-on-error: ${{ contains(matrix.name-suffix, 'pre-release') }}

    strategy:
      fail-fast: false
            python-version: '3.13'
            # https://github.com/matplotlib/matplotlib/issues/29732
            pygobject-ver: '<3.52.0'
          - name-suffix: "(Python pre-release)"
            os: ubuntu-24.04
            python-version: '3.14-dev'

    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
            PRE="--pre"
          fi

          # On pre-release builds, use nightly wheels
          if ${{ contains(matrix.name-suffix, 'pre-release') }}; then
            PRE="--pre --extra-index-url https://pypi.anaconda.org/scientific-python-nightly-wheels/simple"
            PRE+=" --prefer-binary"
          fi

          # Install dependencies from PyPI.
          # Preinstall build requirements to enable no-build-isolation builds.
          python -m pip install --upgrade $PRE \
          # Even though PySide2 wheels can be installed on Python 3.12+, they are broken and since PySide2 is
          # deprecated, they are unlikely to be fixed. For the same deprecation reason, there are no wheels
          # on M1 macOS, so don't bother there either.
          if [[ "${{ matrix.os }}" != 'macos-14'
                && "${{ matrix.python-version }}" != '3.12' && "${{ matrix.python-version }}" != '3.13' ]]; then
          version_atmost() {
            printf "%s\n" "$1" "$2" | sort --version-sort --check=silent
          }
          if [[ "${{ matrix.os }}" != 'macos-14' ]] && version_atmost "${{ matrix.python-version }}" 3.11.999; then
            python -mpip install --upgrade pyside2 &&
              python -c 'import PySide2.QtCore' &&
              echo 'PySide2 is available' ||
        if: matrix.delete-font-cache

      - name: Run pytest
        timeout-minutes: 90
        run: |
          if [[ "${{ matrix.python-version }}" == '3.13t' ]]; then
            export PYTHON_GIL=0
Original file line number	Diff line number	Diff line change
Expand Up		@@ -42,6 +42,7 @@ jobs:
		contents: read
		name: "Python ${{ matrix.python-version }} on ${{ matrix.os }} ${{ matrix.name-suffix }}"
		runs-on: ${{ matrix.os }}
		continue-on-error: ${{ contains(matrix.name-suffix, 'pre-release') }}

		strategy:
		fail-fast: false
Expand DownExpand Up		@@ -88,6 +89,9 @@ jobs:
		python-version: '3.13'
		# https://github.com/matplotlib/matplotlib/issues/29732
		pygobject-ver: '<3.52.0'
		- name-suffix: "(Python pre-release)"
		os: ubuntu-24.04
		python-version: '3.14-dev'

		steps:
		- uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
Expand DownExpand Up		@@ -226,6 +230,12 @@ jobs:
		PRE="--pre"
		fi

		# On pre-release builds, use nightly wheels
		if ${{ contains(matrix.name-suffix, 'pre-release') }}; then
		PRE="--pre --extra-index-url https://pypi.anaconda.org/scientific-python-nightly-wheels/simple"
		PRE+=" --prefer-binary"
		fi

		# Install dependencies from PyPI.
		# Preinstall build requirements to enable no-build-isolation builds.
		python -m pip install --upgrade $PRE \
Expand DownExpand Up		@@ -265,8 +275,10 @@ jobs:
		# Even though PySide2 wheels can be installed on Python 3.12+, they are broken and since PySide2 is
		# deprecated, they are unlikely to be fixed. For the same deprecation reason, there are no wheels
		# on M1 macOS, so don't bother there either.
		if [[ "${{ matrix.os }}" != 'macos-14'
		&& "${{ matrix.python-version }}" != '3.12' && "${{ matrix.python-version }}" != '3.13' ]]; then
		version_atmost() {
		printf "%s\n" "$1" "$2" \| sort --version-sort --check=silent
		}
		if [[ "${{ matrix.os }}" != 'macos-14' ]] && version_atmost "${{ matrix.python-version }}" 3.11.999; then
		python -mpip install --upgrade pyside2 &&
		python -c 'import PySide2.QtCore' &&
		echo 'PySide2 is available' \|\|
Expand DownExpand Up		@@ -333,6 +345,7 @@ jobs:
		if: matrix.delete-font-cache

		- name: Run pytest
		timeout-minutes: 90
		run: \|
		if [[ "${{ matrix.python-version }}" == '3.13t' ]]; then
		export PYTHON_GIL=0
Expand Down