More robust loop replacement

pytest-dev · Apr 19, 2021 · 94c2560 · 94c2560
1 parent 6f5053b
commit 94c2560
Showing 1 changed file with 7 additions and 3 deletions.
diff --git a/pytest_asyncio/plugin.py b/pytest_asyncio/plugin.py
@@ -91,9 +91,13 @@ def pytest_fixture_setup(fixturedef, request):
         outcome = yield
         loop = outcome.get_result()
         policy = asyncio.get_event_loop_policy()
-        old_loop = policy.get_event_loop()
-        if old_loop is not loop:
-            old_loop.close()
+        try:
+            old_loop = policy.get_event_loop()
+            if old_loop is not loop:
+                old_loop.close()
+        except RuntimeError:
+            # Swallow this, since it's probably bad event loop hygiene.
+            pass
         policy.set_event_loop(loop)
         return