[GitHub] [airflow] potiuk commented on pull request #29395: Fix validation of date-time field in API and Parameter schemas

["potiuk (via GitHub)" <gi...@apache.org>]

potiuk commented on PR #29395:
URL: https://github.com/apache/airflow/pull/29395#issuecomment-1419931607

   I think this is the only way to proceed even though it introduces potential backwards-compatibility for those for whom the validation accidentally worked before:
   
   Example snipppet of code showing how `date-time` fields will be validated after installing the validator:
   
   ```
   >>> from airflow.utils.timezone import datetime
   >>> from rfc3339_validator import validate_rfc3339
   >>> dtt =  datetime(2020, 1, 1)
   >>> print(dtt)
   2020-01-01 00:00:00+00:00
   >>> validate_rfc3339(str(dtt))
   False
   >>> validate_rfc3339('2020-01-01T00:00:00+00:00')
   True
   >>> validate_rfc3339('2020-01-01T00:00:00')
   False
   ```
   


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