call remove_done_callback in finally section (python#1688)

ambv · May 23, 2017 · 21b3e04 · 21b3e04
1 parent 002665a
commit 21b3e04
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/Lib/asyncio/base_events.py b/Lib/asyncio/base_events.py
@@ -458,7 +458,8 @@ def run_until_complete(self, future):
                 # local task.
                 future.exception()
             raise
-        future.remove_done_callback(_run_until_complete_cb)
+        finally:
+            future.remove_done_callback(_run_until_complete_cb)
         if not future.done():
             raise RuntimeError('Event loop stopped before Future completed.')