Update src/trio/_core/_run.py

Co-authored-by: Thomas Grainger <[email protected]>
python-trio · Nov 23, 2024 · 2e388e5 · 2e388e5
1 parent da0657d
commit 2e388e5
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/trio/_core/_run.py b/src/trio/_core/_run.py
@@ -2953,9 +2953,10 @@ async def checkpoint_if_cancelled() -> None:
         _KqueueStatistics as IOStatistics,
     )
 else:  # pragma: no cover
-    if "eventlet" in sys.modules or "gevent" in sys.modules:
+    _patchers = sorted({"eventlet", "gevent"}.intersection(sys.modules.keys()))
+    if _patchers:
         raise NotImplementedError(
-            "unsupported platform or primitives trio depends on are monkey-patched out",
+            "unsupported platform or primitives trio depends on are monkey-patched out by {_patchers}",
         )
     else:
         raise NotImplementedError("unsupported platform")