8000 Tweak block_till_done by balloob · Pull Request #4245 · home-assistant/core · GitHub
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Tweak block_till_done #4245

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Nov 6, 2016
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5 changes: 3 additions & 2 deletions homeassistant/core.py
Original file line number Diff line number Diff line change
Expand Up @@ -252,8 +252,9 @@ def async_block_till_done(self):
"""Block till all pending work is done."""
while True:
# Wait for the pending tasks are down
if len(self._pending_tasks) > 0:
yield from asyncio.wait(self._pending_tasks, loop=self.loop)
pending = list(self._pending_tasks)
if len(pending) > 0:
yield from asyncio.wait(pending, loop=self.loop)

# Verify the loop is empty
ret = yield from self.loop.run_in_executor(None, self._loop_empty)
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