potiuk commented on a change in pull request #6596: [AIRFLOW-6004] Untangle
Executors class to avoid cyclic imports
URL: https://github.com/apache/airflow/pull/6596#discussion_r352942743
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File path: airflow/executors/dask_executor.py
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@@ -66,20 +63,17 @@ def execute_async(self,
command: CommandType,
queue: Optional[str] = None,
executor_config: Optional[Any] = None) -> None:
- if not self.futures:
- raise AirflowException("Executor should be started first.")
+ assert self.futures, NOT_STARTED_MESSAGE
Review comment:
I am happy to discuss it and see other's opinion there. I was myself
doubtful about asserts but they are really nicer and in many cases they simply
make sense (see above) my comments. And if we discourage asserts we should
remove them everywhere (they were used in other parts of the code).
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