use different strategy for testing multiple pandas versions

Author: emilykl

.github/workflows/run-pytest.yml

@@ -54,7 +54,7 @@ jobs:
         run: |
           uv venv
           source .venv/bin/activate
-          uv sync --extra dev_optional
+          uv sync --extra dev_optional --extra dev_pandas3
           python --version
       - name: Test core
         run: |
@@ -82,20 +82,16 @@ jobs:
           python -m pytest -x test_init/test_lazy_imports.py
 
   test-optional-legacy-pandas:
-    name: Optional tests (Python ${{ matrix.python-version }}, pandas${{ matrix.pandas-version }}, numpy${{ matrix.numpy-version }})
+    name: Optional tests (Python ${{ matrix.python-version }}, pandas ${{ matrix.pandas-version }})
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
         include:
           - python-version: "3.9"
-            pandas-version: "==1.2.4"
-            numpy-version: "==1.26.4"
-            setuptools-version: "<82"
+            pandas-version: "1"
           - python-version: "3.11"
-            pandas-version: "==2.3.3"
-            numpy-version: "==2.4.0"
-            setuptools-version: ""
+            pandas-version: "2"
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
       - name: Set up Python
@@ -110,8 +106,7 @@ jobs:
         run: |
           uv venv
           source .venv/bin/activate
-          uv sync --extra dev_optional
-          uv pip install "pandas${{ matrix.pandas-version }}" "numpy${{ matrix.numpy-version }}" "setuptools${{ matrix.setuptools-version }}"
+          uv sync --extra dev_optional --extra dev_pandas${{ matrix.pandas-version }}
       - name: Test core
         run: |
           source .venv/bin/activate

pyproject.toml

@@ -83,8 +83,26 @@ dev = [
     "plotly[dev_optional]"
 ]
 
+# The following extras are intended for use in CI only
+dev_pandas1 = [
+    "pandas>=1,<2",
+    "numpy>=1,<2",
+    "setuptools<82"
+]
+dev_pandas2 = [
+    "pandas>=2,<3",
+]
+dev_pandas3 = [
+    "pandas>=3;python_version>='3.11'",
+]
+
 [tool.uv]
 exclude-newer = "72 hours"
+conflicts = [
+    [{ extra = "dev_pandas1" }, { extra = "dev_pandas2" }],
+    [{ extra = "dev_pandas1" }, { extra = "dev_pandas3" }],
+    [{ extra = "dev_pandas2" }, { extra = "dev_pandas3" }],
+]
 
 [project.scripts]
 plotly_get_chrome = "plotly.io._kaleido:plotly_get_chrome"