uranusjr commented on code in PR #38015:
URL: https://github.com/apache/airflow/pull/38015#discussion_r1521948279
##########
airflow/decorators/base.py:
##########
@@ -208,11 +208,35 @@ def __init__(
# since values for those will be provided when the task is run. Since
# we're not actually running the function, None is good enough here.
signature = inspect.signature(python_callable)
+
+ # Don't allow context argument defaults other than None to avoid
ambiguities.
+ if any(
+ param.name in KNOWN_CONTEXT_KEYS and param.default not in (None,
inspect.Parameter.empty)
+ for param in signature.parameters.values()
+ ):
+ raise ValueError("Context key parameters can't have a default
other than None")
Review Comment:
Would it be helpful if this shows which argument is at fault? Or is it
unnecessary?
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