Return multiple python versions when needed

README.md

@@ -30,6 +30,22 @@ The returned tox environment name from returned `passed_name` was replaced by
 - run: ${{ matrix.command }}
 ```
 
+## Returned values
+
+This action returns a list of actions to be executed, each of them containing
+the following fields:
+
+- `name` of the job to run
+
+- `command`, and optional `command2`, `command3`, ... which are the commands
+  to be executed using `run: ` step.
+
+- `python_version` is a string compatible with the expected format used by
+  [actions/setup-python](https://github.com/actions/setup-python) github action,
+  like `3.12` or `3.11\n3.12` when multiple python versions are to be installed.
+
+- `os` the name of an github runner, should be passed to `runs_on: `
+
 ## Examples
 
 Simple workflow using coactions/dynamic-matrix

entrypoint.py

@@ -122,10 +122,12 @@ def sort_key(s: str) -> tuple[int, str]:
             commands = _.split(";")
             env_python = default_python
             # Check for using correct python version for other_names like py310-devel.
-            match = re.search(r"py(\d+)", name)
-            if match:
-                py_version = match.groups()[0]
+            pythons: list[str] = []
+            for py_version in re.findall(r"py(\d+)", line):
                 env_python = f"{py_version[0]}.{py_version[1:]}"
+                pythons.append(PYTHON_REDIRECTS.get(env_python, env_python))
+            if not pythons:
+                pythons.append(default_python)
             for platform_name in platform_names_sorted:
                 if platform_name in name:
                     break
@@ -135,7 +137,7 @@ def sort_key(s: str) -> tuple[int, str]:
             data = {
                 "name": name,
                 "command": commands[0],
-                "python_version": PYTHON_REDIRECTS.get(env_python, env_python),
+                "python_version": "\n".join(pythons),
                 "os": PLATFORM_MAP[platform_name],
             }
             for index, command in enumerate(commands[1:]):

tests/test_action.py

@@ -19,7 +19,7 @@
                 "INPUT_MACOS": "minmax",
                 "INPUT_MAX_PYTHON": "3.8",
                 "INPUT_MIN_PYTHON": "3.8",
-                "INPUT_OTHER_NAMES": "z\nall-linux-arm64:tox -e unit;tox -e integration",
+                "INPUT_OTHER_NAMES": "z\nall-linux-arm64:tox -e py38-unit;tox -e py310-integration",
                 "INPUT_PLATFORMS": "linux-arm64:ubuntu-24.04-arm64-2core",
                 "INPUT_SKIP_EXPLODE": "1",
                 "INPUT_WINDOWS": "minmax",
@@ -28,11 +28,11 @@
                 "matrix": {
                     "include": [
                         {
-                            "command": "tox -e unit",
-                            "command2": "tox -e integration",
+                            "command": "tox -e py38-unit",
+                            "command2": "tox -e py310-integration",
                             "name": "all-linux-arm64",
                             "os": "ubuntu-24.04-arm64-2core",
-                            "python_version": "3.8",
+                            "python_version": "3.8\n3.10",
                         },
                         {
                             "command": "tox -e z",
@@ -71,5 +71,5 @@ def test_action(passed_env: dict[str, str], expected: dict[str, str]) -> None:
         assert isinstance(data, dict), data
         assert len(data) == 1
         assert "matrix" in data
-        assert data == expected
+        assert data == expected, result
         # TestCase().assertDictEqual(data, expected)