def _prompt_bool()

in knack/prompting.py [0:0]

• 17 lines of code
• 11 McCabe index (conditional complexity)

def _prompt_bool(msg, true_str, false_str, default=None, help_string=None):
    verify_is_a_tty()
    if default not in [None, true_str, false_str]:
        raise ValueError("Valid values for default are {}, {} or None".format(true_str, false_str))
    y = true_str.upper() if default == true_str else true_str
    n = false_str.upper() if default == false_str else false_str
    while True:
        ans = _input('{} ({}/{}): '.format(msg, y, n))
        if ans == '?' and help_string is not None:
            print(help_string)
            continue
        if ans.lower() == n.lower():
            return False
        if ans.lower() == y.lower():
            return True
        if default and not ans:
            return default == y.lower()