vincere-mori opened a new pull request, #67417:
URL: https://github.com/apache/airflow/pull/67417
## Summary
`airflow dags next-execution <dag_id> --table` crashes with `AttributeError`
when the DAG has no next scheduled run (e.g. `schedule=None`, or an `@once` DAG
after its run, or `--num-executions` exceeds available runs).
The root cause is in the table-output branch:
```python
# Before (buggy)
AirflowConsole().print_as_table([{n: f(o) for n, f in getters} for o in
iter_next_dagrun_info()])
```
`iter_next_dagrun_info()` yields `DagRunInfo | None`. When `o` is `None`,
calling `operator.attrgetter(c)(None)` raises `AttributeError: 'NoneType'
object has no attribute 'logical_date'`.
The non-table path already handles `None` correctly:
```python
for info in iter_next_dagrun_info():
if info is None:
print("[WARN] No following schedule can be found. ...",
file=sys.stderr)
...
```
## Reproduce
```python
# no_schedule_dag.py
from airflow import DAG
from pendulum import datetime
with DAG("no_schedule", start_date=datetime(2025, 1, 1, tz="UTC"),
schedule=None):
pass
```
```bash
airflow dags next-execution no_schedule --table
# AttributeError: 'NoneType' object has no attribute 'logical_date'
```
## Fix
Mirror the non-table `None` guard in the table path: skip `None` items and
print the same warning to stderr.
Fixes #67394
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