I've been writing a small utility application using Python 3 (the below testcase also works in Python 2, however) and PyQt 4 that uses the code module to spawn a REPL prompt allowing interaction with a Qt window.
Unfortunately I've hit a problem I've been unable to solve: When I exit() the app while code is inside input() (known as raw_input() in Python 2.x), my Linux terminal subsequently no longer echoes typed characters. I.e. the terminal appears to be left in a broken state, presumably due to some escape sequence issued by input().
I've tried a variety of approaches to fix this, from using the curses module and other means to reset the terminal prior to running exit, to trying to emulate the stdin stream to exit by actually handing exit() to input() (unfornunately code.InteractiveConsole.push() does not work that way, as one might think it would), to trying to write my own non-blocking input() using threading, but I've been unable to pull together something working.
Here, here, here and here are discussions of similar problems.
Finally, here is a reduced testcase to demonstrate the problem:
#!/usr/bin/env python3
import code
import sys
from PyQt4.QtGui import QApplication, QWidget
app = QApplication(sys.argv)
app.lastWindowClosed.connect(exit)
widget = QWidget()
widget.show()
code.interact()
For tho