PendingDeprecationWarning is really useful?

[brettcannon]

@Senthil

This is my observation too. We have not been rigorous about deprecating things which have expressed DeprecationWarning for.

I think part of that is because we have not been removing anything due to Python 2 compatibility. But yes, we have not been great at this.

@Senthil

PendingDeprecationWarning may be worser, as the developer will have to track to deprecate it after the N releases in future.

I’ve contemplated adding something to warnings where you specify what version of Python something is scheduled to be removed in and then it would raise PendingDeprecationWarning in >N version, DeprecationWarning in N, and raise a RuntimeError or something for N+1 so it doesn’t get forgotten.