[GitHub] [airflow] mik-laj commented on a change in pull request #6756: [AIRFLOW-6198] Add types to core classes.

[GitBox <gi...@apache.org>]

mik-laj commented on a change in pull request #6756: [AIRFLOW-6198] Add types to core classes.
URL: https://github.com/apache/airflow/pull/6756#discussion_r362701017
 
 

 ##########
 File path: airflow/cli/commands/dag_command.py
 ##########
 @@ -41,7 +41,7 @@ def _tabulate_dag_runs(dag_runs: List[DagRun], tablefmt="fancy_grid"):
             'Run ID': dag_run.run_id,
             'State': dag_run.state,
             'DAG ID': dag_run.dag_id,
-            'Execution date': dag_run.execution_date.isoformat(),
+            'Execution date': dag_run.execution_date.isoformat() if dag_run.execution_date else "",
 
 Review comment:
   ```suggestion
               'Execution date': dag_run.execution_date.isoformat() if dag_run.execution_date else None,
   ```
   JSON supports null type, so we can use it instead of empty text.

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