Clean up a bit

python-trio · Nov 23, 2024 · ab79620 · ab79620
1 parent 2e388e5
commit ab79620
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/src/trio/_core/_run.py b/src/trio/_core/_run.py
@@ -2953,13 +2953,14 @@ async def checkpoint_if_cancelled() -> None:
         _KqueueStatistics as IOStatistics,
     )
 else:  # pragma: no cover
-    _patchers = sorted({"eventlet", "gevent"}.intersection(sys.modules.keys()))
+    _patchers = sorted({"eventlet", "gevent"}.intersection(sys.modules))
     if _patchers:
         raise NotImplementedError(
-            "unsupported platform or primitives trio depends on are monkey-patched out by {_patchers}",
+            "unsupported platform or primitives trio depends on are monkey-patched out by" +
+            ", ".join(_patchers),
         )
-    else:
-        raise NotImplementedError("unsupported platform")
+
+    raise NotImplementedError("unsupported platform")
 
 from ._generated_instrumentation import *
 from ._generated_run import *