uranusjr commented on code in PR #23667:
URL: https://github.com/apache/airflow/pull/23667#discussion_r885293374
##########
airflow/models/dagrun.py:
##########
@@ -928,11 +932,26 @@ def expand_mapped_literals(task: "Operator") ->
Tuple["Operator", Sequence[int]]
)
if not count:
return (task, (-1,))
+ if sequence:
+ return (task, sequence)
return (task, range(count))
tasks_and_map_idxs = map(expand_mapped_literals, filter(task_filter,
dag.task_dict.values()))
tasks = itertools.chain.from_iterable(itertools.starmap(creator,
tasks_and_map_idxs))
+ # Check if we have some missing indexes to create ti for
+ missing_indexes: Dict["MappedOperator", list] = defaultdict(list)
+ [
+ missing_indexes.update({k: list(set(expected_indexes[k]) -
set(v))})
+ for k, v in existing_indexes.items()
+ ]
Review Comment:
```suggestion
for k, v in existing_indexes.items():
missing_indexes.update({k:
list(set(expected_indexes[k]).difference(v))})
```
More Pythonic IMO.
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