'<=' not supported between instances of 'str' and 'int'

[buran]

I tried with int function in front of age input and it doesn't work.

that is exactly what you should do - convert age input (which comes as str) to int. It didn't work because you use comparison ==, not assignment =.

age = int(input())

same for the name

name = input()

name = input('what is your name? ')
if name == 'Alice':
    print ('hi alice')
else:
    print ('hi stranger')
age = int(input('what is your age? '))
if age <= 18:
    print ('come right in')
else:
    print ('you cannot enter')