Prevent infinite loop when asyncio.sleep(0) is used in a loop (fixes #34

)
erdewit · Sep 21, 2020 · 9796f03 · 9796f03
1 parent 32adc55
commit 9796f03
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/nest_asyncio.py b/nest_asyncio.py
@@ -117,7 +117,9 @@ def _run_once(self):
             handle = heappop(scheduled)
             ready.append(handle)
 
-        while ready:
+        for _ in range(len(ready)):
+            if not ready:
+                break
             handle = ready.popleft()
             if not handle._cancelled:
                 handle._run()