How do I compare a datetime created by Pydantic with one created by python's datetime.fromisoformat()?

[ratkins]

Apparently, when I annotate a datetime field in a BaseModel subclass and Pydantic creates the object for me, the runtime type of the datetime field is the (private) Pydantic type TzInfo.

Unfortunately, this doesn't compare as equal to the object I get back from creating one with datetime.timezone(timedelta(hours=1)). Which means my .assert_called_with() assertion fails in my test, even when the objects legitimately represent the same instant:

Expected: [...] event_timestamp=datetime.datetime(2023, 12, 4, 11, 15, 58, tzinfo=datetime.timezone(datetime.timedelta(seconds=3600))), timestamp_created=None))
Actual: [...].  event_timestamp=datetime.datetime(2023, 12, 4, 11, 15, 58, tzinfo=TzInfo(+01:00)), timestamp_created=None))

Can I somehow instruct pydantic to construct a canonicalised datetime object I can compare with a datetime object it's possible to construct myself?

[PrimozGodec]

@ratkins, did you find any solution?

[ybressler]

Can you share an excerpt for replicating your result? I will look into this once you do.

[ybressler]

Also, possibly this could be helpful? Specify timezone in pydantic datetime field [Python]