Hello Flyte folks, so I am updating our flytekit and we recently migrated to pydantic v2 on our model validation. however I am getting the following. Test runs like below • There is a unit test with pytest.raises that should raise ValidationError • This unit test calls flyte task that includes the pydantic model validation • However the test does not return the underlying ValidationError rather return the following

TypeError: No constructor defined

. I can see the underlying ValidationError exception but also see

During handling of the above exception, another exception occurred:

This

TypeError

happens at

flytekit/exceptions/scopes.py:user_entry_point

at this line

except Exception as exc:
                    breakpoint()
>                   raise type(exc)(f"Error encountered while executing '{fn_name}':\n  {exc}") from exc
E                   TypeError: No constructor defined

it looks like pydantic v2 we need to raise specific error like this. Does anyone have this issue

Indeed, I think this should probably be considered a bug in flytekit. This

type(exec)(...)

pattern that is used here and elsewhere in flytekit is fragile and makes a lot of assumptions about a user's exception types that might not be true (in this case, the exception in question doesn't have a

__init__

and can't even be called like this. Should either just reraise the same exact exception, or an exception type that is under Flyte's control.

CC: @freezing-airport-6809

Thank you can you please file a bug