Contract: Handle TypeError

[satwikkansal]

Handles TypeError in methods when either self.args or self.kwargs is None

What was wrong?

I was interacting with avalanche testnet, and one of the contract function threw these errors;

TypeError: call_contract_function() argument after * must be an iterable, not NoneType

TypeError: call_contract_function() argument after*** must be a mapping, not NoneType

Looking at the code I realized that it is because of None values getting unpacked.

How was it fixed?

I added a conditional assignment to handle None values. I'm not sure if this is the right way to do it though because I didn't find this issue encountered by anyone else on the repository issues. It might be that I'm doing something wrong during initialization.

However from the type definition of ContractFunction it seems that args and kwargs are initialized to None, so unless there's a logic that'll always make sure that neither of this are None when *, and ** are used, the chances of these errors will be there.

Let me know if my analysis is correct 😅

Todo:

Cute Animal Picture