[GitHub] [airflow] potiuk commented on issue #19096: Sets in parameters cause "TypeError: Object of type set is not JSON serializable"

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

potiuk commented on issue #19096:
URL: https://github.com/apache/airflow/issues/19096#issuecomment-965535055


   I have a feeling that it's pendulum.datetime that has the problem (remember our latest discussions):
   
   in serialized objects we have:
   
   ```
         elif isinstance(var, cls._datetime_types):
               return cls._encode(var.timestamp(), type_=DAT.DATETIME)
           elif isinstance(var, datetime.timedelta):
   ```
   
   and in BaseSerialization:
   
   ```
       # Time types.
       # datetime.date and datetime.time are converted to strings.
       _datetime_types = (datetime.datetime,)
   ```


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