Add test and doc requirements to pyproject

Author: QuLogic

.github/workflows/tests.yml

@@ -29,14 +29,13 @@ jobs:
           python-version: ${{ matrix.python-version }}
           allow-prereleases: true
 
-      - name: Install Python dependencies
+      - name: Upgrade pip
         run: |
           python -m pip install --upgrade pip
-          python -m pip install --upgrade pytest pytest-cov pytest-xdist
 
       - name: Install cycler
         run: |
-          python -m pip install --no-deps .
+          python -m pip install .[tests]
 
       - name: Run pytest
         run: |

pyproject.toml

@@ -25,6 +25,19 @@ keywords = ["cycle kwargs"]
 homepage = "https://matplotlib.org/cycler/"
 repository = "https://github.com/matplotlib/cycler"
 
+[project.optional-dependencies]
+docs = [
+    "ipython",
+    "matplotlib",
+    "numpydoc",
+    "sphinx",
+]
+tests = [
+    "pytest",
+    "pytest-cov",
+    "pytest-xdist",
+]
+
 [tool.setuptools]
 packages = ["cycler"]