Add optional dependencies

.github/workflows/build.yml

@@ -26,8 +26,7 @@ jobs:
 
       - name: Test sdist
         run: |
-          python -m pip install dist/apngasm_python-*.tar.gz
-          pip install pytest Pillow numpy &&
+          python -m pip install dist/apngasm_python-*.tar.gz[full,test]
           pytest
 
       - uses: actions/upload-artifact@v3

.github/workflows/check_and_fix.yml

@@ -22,18 +22,14 @@ jobs:
     - uses: actions/setup-python@v5
       with:
         python-version: '3.9'
-    - name: Install dependency
-      run: |
-        pip install build ruff mypy isort Pillow numpy pytest types-Pillow
-        pip install git+https://github.com/wjakob/nanobind.git
+    - name: Install test
+      run: pip install .[full,test,lint]
     - name: Ruff check
       run: ruff check
-    - name: Install test
-      run: pip install .
-    - name: mypy
-      run: mypy
     - name: ruff format
       run: ruff format
+    - name: mypy
+      run: mypy
     - name: isort
       run: isort .
     - name: nanobind stubgen

README.md

@@ -25,9 +25,10 @@ Documentations: https://apngasm-python.readthedocs.io/en/latest/
 pip install apngasm-python
 ```
 
-Optionally, you can also install `Pillow` and `numpy`
+`Pillow` and `numpy` are optional dependencies. Without them,
+some functions are not usable. To also install them:
 ```
-pip install Pillow numpy
+pip install apngasm-python[full]
 ```
 
 ## Example usage

pyproject.toml

@@ -15,12 +15,28 @@ Repository = "https://github.com/laggykiller/apngasm-python"
 Documentation = "https://apngasm-python.readthedocs.io/en/latest/"
 Tracker = "https://github.com/laggykiller/apngasm-python/issues"
 
+[project.optional-dependencies]
+full = [
+    "Pillow",
+    "numpy",
+]
+
+test = [
+    "pytest",
+]
+
+lint = [
+    "ruff",
+    "mypy",
+    "isort",
+    "types-Pillow",
+]
+
 [build-system] # How pip and other frontends should build this project
 requires = [
     "py-build-cmake==0.2.0a12",
     "nanobind @ git+https://github.com/wjakob/nanobind.git",
-    "conan>=2.0",
-    "wheel"
+    "conan>=2.0"
 ]
 build-backend = "py_build_cmake.build"