amoghrajesh commented on code in PR #46929:
URL: https://github.com/apache/airflow/pull/46929#discussion_r1963625268
##########
airflow/models/xcom.py:
##########
@@ -154,6 +154,9 @@ def set(
"""
from airflow.models.dagrun import DagRun
+ if not key:
+ raise ValueError(f"XCom key must be a non-empty string. Received:
{key!r}")
+
Review Comment:
This will prevent future additions with key as empty or None. We should also
be handling cases when empty key or "" is passed in the xcom_pull scenario.
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