Code review comment for lp:~frankban/juju-quickstart/improve-input-handling

*** Submitted:

Improve views input handling.

Add a new set_return_value_on_exit API that
views can call to set the value encapsulated
in the AppExit exception raised when the user
quits the application with ^X.

Tests: `make check`

QA: start the demo app
(`make` and `./cli-app-demo.py).
Try exiting with ^X: you should see the
"no environment selected" message.
Restart and exit selecting an environment:
you should see a message indicating that
environment has been selected.
Restart and change the default environment,
then exit: you should see the new env_db
printed and the new default environment.

R=matthew.scott
CC=
https://codereview.appspot.com/43600047

https://codereview.appspot.com/43600047/