Getting a weird error after updating Singer SDK – has anyone else seen this before?

time=2021-11-04 14:37:50 name=tap-blackbaud level=INFO message=tap-blackbaud v0.0.3, Meltano SDK v0.3.13)
 Traceback (most recent call last):
 File "/home/envs/blackbaud/bin/tap-blackbaud", line 8, in <module>
 sys.exit(cli())
 File "/home/envs/blackbaud/lib64/python3.7/site-packages/click/core.py", line 1128, in __call__
 return self.main(*args, **kwargs)
 File "/home/envs/blackbaud/lib64/python3.7/site-packages/click/core.py", line 1053, in main
 rv = self.invoke(ctx)
 File "/home/envs/blackbaud/lib64/python3.7/site-packages/click/core.py", line 1395, in invoke
 return ctx.invoke(self.callback, **ctx.params)
 File "/home/envs/blackbaud/lib64/python3.7/site-packages/click/core.py", line 754, in invoke
 return __callback(*args, **kwargs)
 File "/home/envs/blackbaud/lib64/python3.7/site-packages/singer_sdk/tap_base.py", line 463, in cli
 validate_config=validate_config,
 TypeError: __init__() got an unexpected keyword argument 'validate_config'

Hi @hassan_syyid. Are you using a custom constructor for your tap class?

Hey @edgar_ramirez_mondragon – yes I do: https://github.com/hotgluexyz/tap-blackbaud/blob/master/tap_blackbaud/tap.py#L55

Ok, so you have to either 1. add

validate_config: bool = True

to the

__init__

signature and pass it to

super().__init__

2. or protect against future signature additions with

__init__(self, *args, **kwargs)

and

super().__init__(*args, **kwargs)

Oh I see – Thanks!

I'll add that we are shortly adding

prepare_tap()

which will give a stable and simple override point for setup operations. Resolve "Setup callback hook for base classes" (!194) · Merge requests · Meltano / Meltano SDK for Singer Taps and Targets · GitLab

@aaronsteers I started a few discussions on that MR but I don’t have any more code to add at least at the moment

Yeah, not posting here to rush or anything, just for visibility. And I added a note about linting with the use case during prepare_ to initialize new attributes, as in Hassan's example.