如何要求用户提供布尔输入以限定if语句并使用Python中的该信息打印句子

Question

I'm here with my first (hopefully not last) query for you.

I'm trying to get information from the user, specifically boolean values to determine if they are male/female and tall/short, then print the correct statement of "You are a tall/short male/female"

is_tall = input("Are you tall?")
is_male = input("Are you male?")

if is_tall and is_male:
  print("You are a tall male")
elif is_tall and not(is_male):
  print("You are a tall female")
elif not(is_tall) and is_male:
  print("You are a short male, sorry")
else:
  print("You are a short female, sorry")

My code runs and always returns "You are a tall male", searching reveals this is because the user's input is considered always true as it is a string.

I've seen other examples for grabbing boolean values but not for grabbing two and using them both within if statements. Am I anywhere close here, what am I missing? I know I can't use bool() around the input to convert it.

Answer 1

Currently, you are checking if the string is non-zero. Instead, check the value of the string.

    if is_tall.upper() in ('YES', 'Y') and is_male.upper() in ('YES', 'Y'):
        print("You are a tall male")
    elif is_tall.upper() in ('YES', 'Y') and is_male.upper() in ('NO', 'N'):
        print("You are a tall female")

etc.

You may list as many valid strings (answers) as you like in the brackets after in , and forcing all input to either .upper() or .lower() saves you from dealing with twice as many (or more) possible responses.

Answer 2

you could try something like this:

tall_str = input("Are you tall? ")
while tall_str.lower() not in {'y', 'yes', 'n', 'no'}:
   tall_str = input("Are you tall [y/n] ? ")

is_tall = True if tall_str.lower() in {'y', 'yes'} else False

this will accept things like 'Yes' and 'nO' (for tall_str ) and then convert them to True or False (for is_tall ) and ask again if the given answer is not acceptable.

you could then do the same for is_male .

having cast the string to a boolean your if clauses will work.

Answer 3

Would this approach seem fit to you?

is_tall = True if input("Are you tall?").lower() == 'y' else False
is_male = True if input("Are you male?").lower() == 'y' else False
...

There is no easy way to get bool in input, although you can convert it yourself.