ferruzzi commented on code in PR #39151:
URL: https://github.com/apache/airflow/pull/39151#discussion_r1575404547


##########
airflow/providers/amazon/aws/operators/s3.py:
##########
@@ -503,23 +509,37 @@ def __init__(
         self.bucket = bucket
         self.keys = keys
         self.prefix = prefix
+        self.from_datetime = from_datetime
+        self.to_datetime = to_datetime
         self.aws_conn_id = aws_conn_id
         self.verify = verify
 
         self._keys: str | list[str] = ""
 
-        if not exactly_one(prefix is None, keys is None):
-            raise AirflowException("Either keys or prefix should be set.")
+        if not exactly_one(keys is None, all([prefix is None, from_datetime is 
None, to_datetime is None])):
+            raise AirflowException(
+                "Either keys or at least one of prefix, from_datetime, 
to_datetime should be set."

Review Comment:
   > there are specific tests that check what happens for empty list or string 
in keys value
   
   Yeah I saw those, I just disagree with how they were handled, but that's way 
out of scope for this PR.  If an empty value is acceptable, then it's clearly 
NOT a required value.  But either way, not something to fix here. Sorry about 
that.
   
   
   > do you suggest to add the exactlyone function to airflow helpers?
   
   If you feel like doing it, I'd support that, but I won't require it.   This 
statementis correct as written but really isn't intuitive at all, and that's 
usually when I start looking for a helper to clarify.  We already have 
`exactly_one` and `at_most_one`, it makes sense ti add `at_least_one`.
   
   
   Feel free to resolve this convo.



-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: commits-unsubscr...@airflow.apache.org

For queries about this service, please contact Infrastructure at:
us...@infra.apache.org

Reply via email to