I don't think it should stop using raw_input just because you changed
stdin, as you can change it to something that will work with raw_input.
Consider:
>>> import sys
>>> sys.stdin = open("/dev/tty")
>>> raw_input()
a
'a'

You can tie it to any object (e.g. a GUI input) that supports the file
protocol and keep using raw_input. Or change Cmd.use_rawinput to 0 to
use stdin.readline directly.

On a related issue. Cmd.use_rawinput should be "True", not 1...