why this code <https://gist.github.com/anonymous/a...

# coroutines

[rrader]

why this code https://gist.github.com/anonymous/a35902074459c54428696a277a0cf7d5 is blocking? http://pastebin.com/8qZ9XcRA
await is not blocking, why "start for: 9" appears after "3" appears?