BasPH commented on a change in pull request #6549: [AIRFLOW-5880] Enforce
unique task ids
URL: https://github.com/apache/airflow/pull/6549#discussion_r345057908
##########
File path: airflow/models/dag.py
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@@ -1190,13 +1189,8 @@ def add_task(self, task):
task.end_date = min(task.end_date, self.end_date)
if task.task_id in self.task_dict:
Review comment:
IMO it should. I often see it going wrong with for loops where people forget
to make unique task ids. E.g.:
```python
for i in range(5):
DummyOperator(task_id="task")
```
In this case, currently no warning/error is given an only the last defined
task is saved. I think enforcing unique task ids here would be a good thing.
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