Fixed by PR 21.

Original Comment By: Sebastian Ramacher

This has been reverted because it caused a bug with input() in Python 3.

I asked hndrewaall on Bitbucket (who originally raise this issue) why they needed it - said

It solved an issue I had while using fabric under bpython. I doubt an irrelevant one would work, but I also had so many other issues with fabric + bpython that I'm not sure special consideration for that use case is justified. Indeed, it is quite possible that I should be coming up with patches on the fabric side :)

I ran into this also. http://stackoverflow.com/questions/29757251/get-the-path-of-the-current-tty-in-python/29757597#29757597 I'm using ioctl http://stackoverflow.com/questions/29614264/unable-to-fake-terminal-input-with-termios-tiocsti/29616465#29616465 to send commands to a alternate local tty to solve the 'live demo typing' problem. The project is at https://github.com/RichardBronosky/ttysend but the use of fileno() has not been committed yet.

For a workaround, you might use sys.__stdout__ which isn't faked.