MNT: migrate requirement files to PEP 735 dependency groups

.github/dependabot.yml

@@ -1,14 +1,5 @@
 version: 2
 updates:
-- package-ecosystem: pip
-  directory: /requirements
-  schedule:
-    interval: monthly
-  groups:
-    actions:
-      patterns:
-      - '*'
-
 - package-ecosystem: github-actions
   directory: /.github/workflows
   schedule:

.github/workflows/bleeding-edge.yaml

@@ -23,8 +23,6 @@ jobs:
       matrix:
         os:
         - ubuntu-latest
-        - macos-latest
-        # excluding windows for lack of wheels at the tim of writing
 
     runs-on: ${{ matrix.os }}
     name: Test nightly dependencies
@@ -35,36 +33,29 @@ jobs:
       with:
         fetch-depth: 0
 
-    - name: Set up Python Dev Version
-      uses: actions/setup-python@v5
-      with:
-        python-version: 3.13-dev
     - uses: astral-sh/setup-uv@v3
       with:
         enable-cache: true
         cache-dependency-glob: |
-          **/requirements/tests.txt
           **/pyproject.toml
 
     - name: Install dependencies
       run: |
-        uv venv
+        uv venv -p 3.13
         uv pip install --pre --no-build numpy matplotlib \
           --extra-index-url \
           https://pypi.anaconda.org/scientific-python-nightly-wheels/simple \
           --index-strategy=unsafe-best-match
 
     - name: Build library
-      # forcing bytecode compilation for colorspacious
-      # see https://github.com/astral-sh/uv/issues/4758
-      run: |
-        uv pip install .
-        uv pip install --compile -r requirements/tests.txt
+      run: uv pip install .
 
     - name: Run test suite
+      # forcing bytecode compilation for colorspacious
+      # see https://github.com/astral-sh/uv/issues/4758
       run: |
-        source .venv/bin/activate
-        pytest --color yes --mpl-results-path=test_results
+        uv run --no-editable --compile-bytecode --group test \
+          pytest --color yes --mpl-results-path=test_results
 
     - uses: actions/upload-artifact@v4
       if: failure()

.github/workflows/ci.yml

@@ -31,10 +31,8 @@ jobs:
           python-version: '3.13'
         - os: windows-latest
           python-version: '3.10'
-          venv-loc: Script
         - os: windows-latest
           python-version: '3.13'
-          venv-loc: Script
         - os: ubuntu-20.04
           python-version: '3.10'
           # 2023-09-15 is numpy 1.26.0's release date
@@ -48,30 +46,23 @@ jobs:
       with:
         enable-cache: true
         cache-dependency-glob: |
-          **/requirements/tests.txt
           **/pyproject.toml
 
-    # forcing bytecode compilation for colorspacious
-    # see https://github.com/astral-sh/uv/issues/4758
-    - run: |
-        uv venv --python ${{ matrix.python-version }}
-        uv pip install --compile -r requirements/tests.txt ${{ matrix.install-args }}
-
     - name: Build library
-      run: uv pip install . ${{ matrix.install-args }}
+      run: |
+        uv venv -p ${{ matrix.python-version }}
+        uv pip install . ${{ matrix.install-args }}
 
     - run: uv pip list
 
-    - name: Run test suite (UNIX)
-      if: matrix.os != 'windows-latest'
-      run: |
-        source .venv/bin/activate
-        pytest --color yes -ra
-    - name: Run test suite (Windows)
-      if: matrix.os == 'windows-latest'
+    - name: Run test suite
+      shell: bash # for windows compat
+      # forcing bytecode compilation for colorspacious
+      # see https://github.com/astral-sh/uv/issues/4758
+      #
       run: |
-        .venv/Scripts/activate
-        pytest --color yes -ra
+        uv run --no-editable --compile-bytecode --group test ${{ matrix.install-args }} \
+          pytest --color yes -ra
     - uses: actions/upload-artifact@v4
       if: failure()
       with:
@@ -83,40 +74,29 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: 3.x
     - uses: astral-sh/setup-uv@v3
       with:
         enable-cache: true
         cache-dependency-glob: |
-          **/requirements/tests.txt
           **/pyproject.toml
 
-    - name: Build library
+    - name: Run Image Tests
       # forcing bytecode compilation for colorspacious
       # see https://github.com/astral-sh/uv/issues/4758
       run: |
-        uv venv
-        uv pip install .
-        uv pip install --compile -r requirements/tests.txt
-
-    - name: Run Image Tests
-      run: |
-        source .venv/bin/activate
-        pytest --color=yes --mpl -m mpl_image_compare \
-               --mpl-generate-summary=html \
-               --mpl-results-path=pytest_mpl_results \
-               --mpl-baseline-path=tests/baseline
+        uv run -p 3.13 --no-editable --compile-bytecode --group test \
+          pytest --color=yes --mpl -m mpl_image_compare \
+                --mpl-generate-summary=html \
+                --mpl-results-path=pytest_mpl_results \
+                --mpl-baseline-path=tests/baseline
 
     - name: Generate new image baseline
       if: failure()
       run: |
-        source .venv/bin/activate
-        pytest --color=yes --mpl -m mpl_image_compare \
-               --mpl-generate-path=pytest_mpl_new_baseline \
-               --last-failed
+        uv run --no-editable --group test \
+          pytest --color=yes --mpl -m mpl_image_compare \
+                 --mpl-generate-path=pytest_mpl_new_baseline \
+                 --last-failed
 
     # always attempt to upload artifacts, even
     # (and especially) in case of failure.
@@ -156,10 +136,8 @@ jobs:
       with:
         enable-cache: true
         cache-dependency-glob: |
-          **/requirements/typecheck.txt
           **/pyproject.toml
     - name: Run mypy
       run: |
-        uvx --python ${{ matrix.python-version }} \
-          --with-requirements=requirements/typecheck.txt --with . \
+        uv run -p ${{ matrix.python-version }} --no-editable --group typecheck \
           mypy cmyt

pyproject.toml

@@ -42,6 +42,16 @@ Homepage = "https://yt-project.org/"
 Source = "https://github.com/yt-project/cmyt/"
 Tracker = "https://github.com/yt-project/cmyt/issues"
 
+[dependency-groups]
+typecheck = [
+    "mypy>=1.11.2",
+]
+test = [
+    "colorspacious>=1.1.2",
+    "pytest-mpl>=0.13",
+    "pytest>=6.2.4",
+]
+
 [tool.ruff.lint]
 exclude = ["*__init__.py"]
 ignore = ["E501"]