> I agree with Terry, the moment you pass a dict subclass to exec you are out of contract. If any, we may need to sanitize the input to exec, although I don't think is worth paying the performance price for that.

exec() params are already checked, as a seconds param, only dict or dict subclasses are accepted. Seems like good enough contract.

> Paul, I don't know if you are being sarcastic here so I will assume that you are not but in case you are, I suggest you stop as this violates our CoC.

I am not, and please stop your accusations, that violates CoC.