why this code no work?

Question

print ('MathBot: Would you like me to do a math problem?')

if input(': ').lower() == 'no' or 'nope' or 'no thanks' or 'nah' or 'no way dude':

    try:

        print('ok')

        exit()

if input(': ').lower() == 'yes' or 'yeah' or 'yes please' or 'sure' or 'yeah dude':

    try:

        hi = input('/,-,+,x: ')

        num1 = input('number 1: ')

        num2 = input('number 2: ')

        if hi == '+':

            print(float(num1) + float(num2))

    

        if hi == '-':

            print(float(num1) - float(num2))

    

        if hi == '/':

            print(float(num1) / float(num2))

    

        if hi == 'x':

            print(float(num1) * float(num2))

            

    except ValueError:

        print('Error')

Answer 1

print ('MathBot: Would you like me to do a math problem?')
if input(': ').lower() == 'no' or 'nope' or 'no thanks' or 'nah' or 'no way dude':
    print('ok')
    exit()
elif input(': ').lower() == 'yes' or 'yeah' or 'yes please' or 'sure' or 'yeah dude':
    hi = input('/,-,+,x: ')
    num1 = input('number 1: ')
    num2 = input('number 2: ')
    if hi == '+':
        print(float(num1) + float(num2))
    elif hi == '-':
            print(float(num1) - float(num2))
    elif hi == '/':
        print(float(num1) / float(num2))
    elif hi == 'x':
            print(float(num1) * float(num2))

This one works...

Comments

I can help. Depends what math. I can do addition, subtraction, multiplication, and division but thats it :(

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I can only do it in C++ though