fix skip with package = wheel

docs/changelog/3269.feature.rst

@@ -0,0 +1 @@
+Fix ``skip_missing_interpreters`` option for ``package = wheel``

src/tox/tox_env/python/package.py

@@ -120,7 +120,12 @@ def default_wheel_tag(conf: Config, env_name: str | None) -> str:  # noqa: ARG00
 
     def child_pkg_envs(self, run_conf: EnvConfigSet) -> Iterator[PackageToxEnv]:
         if run_conf["package"] == "wheel":
-            env = self._wheel_build_envs.get(run_conf["wheel_build_env"])
+            try:
+                conf = run_conf["wheel_build_env"]
+            except Skip:
+                # the __getitem__ method might raise Skip if the interpreter is not available
+                return
+            env = self._wheel_build_envs.get(conf)
             if env is not None and env.name != self.name:
                 yield env
 

tests/session/cmd/test_depends.py

@@ -8,7 +8,7 @@
     from tox.pytest import ToxProjectCreator
 
 
-def test_depends(tox_project: ToxProjectCreator, patch_prev_py: Callable[[bool], tuple[str, str]]) -> None:
+def test_depends_wheel(tox_project: ToxProjectCreator, patch_prev_py: Callable[[bool], tuple[str, str]]) -> None:
     prev_ver, impl = patch_prev_py(True)  # has previous python
     ver = sys.version_info[0:2]
     py = f"py{''.join(str(i) for i in ver)}"
@@ -35,18 +35,61 @@ def test_depends(tox_project: ToxProjectCreator, patch_prev_py: Callable[[bool],
        py ~ .pkg
        {py} ~ .pkg
        {prev_py} ~ .pkg | .pkg-{impl}{prev_ver}
-       py31 ~ .pkg | ... (could not find python interpreter with spec(s): py31)
+       py31 ~ .pkg
        cov2
           cov
              py ~ .pkg
              {py} ~ .pkg
              {prev_py} ~ .pkg | .pkg-{impl}{prev_ver}
-             py31 ~ .pkg | ... (could not find python interpreter with spec(s): py31)
+             py31 ~ .pkg
        cov
           py ~ .pkg
           {py} ~ .pkg
           {prev_py} ~ .pkg | .pkg-{impl}{prev_ver}
-          py31 ~ .pkg | ... (could not find python interpreter with spec(s): py31)
+          py31 ~ .pkg
+    """
+    assert outcome.out == dedent(expected).lstrip()
+
+
+def test_depends_sdist(tox_project: ToxProjectCreator, patch_prev_py: Callable[[bool], tuple[str, str]]) -> None:
+    prev_ver, _impl = patch_prev_py(True)  # has previous python
+    ver = sys.version_info[0:2]
+    py = f"py{''.join(str(i) for i in ver)}"
+    prev_py = f"py{prev_ver}"
+    ini = f"""
+    [tox]
+    env_list = py,{py},{prev_py},py31,cov2,cov
+    [testenv]
+    package = sdist
+    [testenv:cov]
+    depends = py,{py},{prev_py},py31
+    skip_install = true
+    [testenv:cov2]
+    depends = cov
+    skip_install = true
+    """
+    project = tox_project({"tox.ini": ini, "pyproject.toml": ""})
+    outcome = project.run("de")
+    outcome.assert_success()
+
+    expected = f"""
+    Execution order: py, {py}, {prev_py}, py31, cov, cov2
+    ALL
+       py ~ .pkg
+       {py} ~ .pkg
+       {prev_py} ~ .pkg
+       py31 ~ .pkg
+       cov2
+          cov
+             py ~ .pkg
+             {py} ~ .pkg
+             {prev_py} ~ .pkg
+             py31 ~ .pkg
+       cov
+          py ~ .pkg
+          {py} ~ .pkg
+          {prev_py} ~ .pkg
+          py31 ~ .pkg
     """
     assert outcome.out == dedent(expected).lstrip()
 

tests/test_provision.py

@@ -62,7 +62,13 @@ def _make_tox_wheel(
         into = tmp_path_factory.mktemp("dist")  # pragma: no cover
         from tox.version import version_tuple  # noqa: PLC0415
 
-        version = f"{version_tuple[0]}.{version_tuple[1]}.{int(version_tuple[2]) + 1}"
+        _patch_version = version_tuple[2]
+        if isinstance(_patch_version, str) and _patch_version[:3] == "dev":
+            # Version is in the form of 1.23.dev456, we need to increment the 456 part
+            version = f"{version_tuple[0]}.{version_tuple[1]}.dev{int(_patch_version[3:]) + 1}"
+        else:
+            version = f"{version_tuple[0]}.{version_tuple[1]}.{int(_patch_version) + 1}"
+
         with mock.patch.dict(os.environ, {"SETUPTOOLS_SCM_PRETEND_VERSION": version}):
             return pkg_builder(into, Path(__file__).parents[1], ["wheel"], False)  # pragma: no cover