Update Lib/test/libregrtest/runtests.py

vstinner · AlexWaygood · web-flow · commit 6b6addf967c9 · 2023-09-05T22:33:03.000+02:00
Co-authored-by: Alex Waygood &lt;Alex.Waygood@Gmail.com&gt;
diff --git a/Lib/test/libregrtest/runtests.py b/Lib/test/libregrtest/runtests.py
@@ -65,13 +65,12 @@ def from_json(worker_json):
 
 class _EncodeRunTests(json.JSONEncoder):
     def default(self, o: Any) -> dict[str, Any]:
-        match o:
-            case RunTests():
-                result = dataclasses.asdict(o)
-                result["__runtests__"] = True
-                return result
-            case _:
-                return super().default(o)
+        if isinstance(o, RunTests):
+            result = dataclasses.asdict(o)
+            result["__runtests__"] = True
+            return result
+        else:
+            return super().default(o)
 
 
 def _decode_runtests(d: dict[str, Any]) -> RunTests | dict[str, Any]:
