snapshot of https://github.com/zulip/zulip.git @ 48c69911c7dd4e03b20552eb3bd77ad8151c1357 (2026-09-15)

zerver/lib/async_utils.py

@@ -0,0 +1,23 @@
+# nocoverage
+
+import asyncio
+import sys
+
+from typing_extensions import override
+
+if sys.version_info < (3, 14):
+
+    class NoAutoCreateEventLoopPolicy(asyncio.DefaultEventLoopPolicy):
+        """
+        By default asyncio.get_event_loop() automatically creates an event
+        loop for the main thread if one isn't currently installed.  Since
+        Django intentionally uninstalls the event loop within
+        sync_to_async, that autocreation proliferates confusing extra
+        event loops that will never be run.  It is also deprecated in
+        Python 3.10.  This policy disables it so we don't rely on it by
+        accident.
+        """
+
+        @override
+        def get_event_loop(self) -> asyncio.AbstractEventLoop:
+            return asyncio.get_running_loop()