Port asyncio package

[naftaliharris]

No description provided.

[naftaliharris]

Needs #11

[naftaliharris]

Needs #17

And windows support blocked by #16

[naftaliharris]

This should wait until more language features are backported.

[syrusakbary]

I think that would be a great addition!
Great work so far Naftali!!

[ysangkok]

What is missing for this?

[arizvisa]

@ysangkok, it seems that what's missing is that on win32 Lib/selectors.py only uses Modules/selectmodule.c which is win32's select. Win32's select only works on sockets and not a HANDLE (the fd on Windows) . A fix might be to implement WaitForSingleObject or WaitForMultipleObjects in PC/msvcrtmodule.c and then add usage of that to Lib/selectors.py.

[arizvisa]

Is there any interest in this? Doing the C for it won't be hard at all, but I don't use asyncio. So, if I implemented it, I'd need someone to help w/ the library updates or perhaps to tinker w/ it.

[ysangkok]

When I originally asked this, we hadn't ported to Python 3. But now we have (with no backwards compatibility), so I can't test this.

[arizvisa]

@ysangkok, gotcha. no worries then.