a module for multiple input waiting

[Skaperen]

i think (why would i bother to do that) what would be useful is a class that takes care of multiple I/O concurrency. you just create a new instance and register your open files with it, along with optional info you want to include (pass it a tuple with the file at [0]). then you can call its wait method, giving it the time to wait (or 0 to check without waiting) and it returns the file that has something or None if there was no I/O yet to do. does that seem like a simple enough interface? could this be made to work on other platforms (by someone that knows that platform)? i know it can on Linux, BSD, and OSX. Windows i don't know (but that wouldn't stop me from making it). has it already been done? what would/should its name be?