why does this not work

Question

name = input("what is your name")
age = input(" how old are you")

if age == 13 and name == alex:
print(" good for you")
else: print(" oh hello" +name)

Answer 1

alex is a string and must be quoted. I believe the interpreter has allocated a new variable alex which is uninitialized.

Answer 2

You need to quote the strings '13' and 'Alex'

Answer 3

Looking at your code, it's comparing whatever the user has put as their name to a variable called alex which hasn't been declared. Also, when the user enters their age, this stores their input as a string so when comparing it will not match to the number 13. I've amended your code as follows:

name = input("What is your name: ")
print(name)
age = int(input("How old are you: "))
print(age)

if age == 13 and name == "alex":
print("Good for you")
else: print("Oh hello " +name)

The int () before the input for the age variable will return a number to compare to 13.

Hope this helps