starting docker container messes up terminal settings

[Larry Martell]

I am starting a docker container from a subprocess.Popen and it works,
but when the script returns, the terminal settings of my shell are
messed up. Nothing is echoed and return doesn't cause a newline. I can
fix this with 'tset' in the terminal, but I don't want to require
that. Has anyone here worked with docker and had seen and solved this
issue?