bpo-34037, asyncio: add BaseEventLoop.wait_executor_on_close (GH-13786)
Add BaseEventLoop.wait_executor_on_close attribute: true by default.
loop.close() now waits for the default executor to finish by default.
Set loop.wait_executor_on_close attribute to False to not wait for
the executor.
diff --git a/Lib/asyncio/base_events.py b/Lib/asyncio/base_events.py
index e002539..b1a7f88 100644
--- a/Lib/asyncio/base_events.py
+++ b/Lib/asyncio/base_events.py
@@ -380,6 +380,8 @@
class BaseEventLoop(events.AbstractEventLoop):
def __init__(self):
+ # If true, close() waits for the default executor to finish
+ self.wait_executor_on_close = True
self._timer_cancelled_count = 0
self._closed = False
self._stopping = False
@@ -635,7 +637,7 @@
executor = self._default_executor
if executor is not None:
self._default_executor = None
- executor.shutdown(wait=False)
+ executor.shutdown(wait=self.wait_executor_on_close)
def is_closed(self):
"""Returns True if the event loop was closed."""