[Python-ideas] Deprecation utilities for the warnings module

[Anders Hovmöller]

> If correctly understood your concern, it's about usage of stdlib's *Warning classes directly
> that makes all warnings coming from different libraries indistinguishable.

That was my concern yes. 

> I think that's not the case, since warnings.filterwarnings allows
> to specify custom filter using a regular expression to match module names.

And what does that match against? The module name of the exception type right?

> Therefore it's not redundant to subclass *Warning for namespacing alone.

Not redundant? You mean you must subclass? In that case my concern stands. 

/ Anders