def exception_handler(exctype, value, traceback):
    """
    This exception handler catches KeyboardInterrupt to cancel the Runner and
    also stops the Runner in case of an error.
    """
    if exctype == KeyboardInterrupt:
        pypro.console.out('')  # Adds a new line after Ctrl+C character
        pypro.console.err('Canceled')
    elif exctype == PyproException:
        pypro.console.err('[Error] ', value.message)
        exit()
    else:
        sys.__excepthook__(exctype, value, traceback)