Comment by davidfstr

Looks like this library is serious. Most of what I see can be written more succinctly using existing Python functionality:

  1. Maybe -> Optional[T]
  2. Result -> Union[SuccessT, FailureT]
  3. Future, FutureResult -> concurrent.futures.Future[T]
  4. IO ->  don't use this; none of the standard library I/O supports it

I do appreciate the use of "container" as a term instead of "monad".

I also appreciate the typechecker enhancements being put forward by their custom plugins.