if age >= 65 or >= 13 syntax

Question

print("Welcome to the Ontario Science Centre! ")
location = int(input("Would you like to attend the Science Centre (1), IMAX Film (2), or both (3)? "))
age = int(input("What is your age? "))
id = input("Do you have a student ID? ('y' or 'n') ")

if location == 1:
    if id == 'y':
        if age <= 2:
            print("Your cost for entry will be $0.00")
        elif age <= 17:
            print("Your cost for entry will be $13.00")
        else:   
            print("Your cost for entry will be $16.00")
    elif id == 'n':
        if age >= 65 or >= 13:
            print("Your cost for entry will be $16.00")
        elif age >= 18:
            print("Your cost for entry will be $22.00")
        elif age >= 3: 
            print("Your cost for entry will be $13.00")
        else:
            print("Your cost for entry will be $0.00")

if location == 2:
    if id == 'y':
        if age <= 2:
            print("Your cost for entry will be $0.00")  
        else:
            print("Your cost for entry will be $9.00")
    if id == 'n':
        if age <= 2:
            print("Your cost for entry will be $0.00")
        else: 
            print("Your cost for entry will be $9.00")



if location == 3:
    if id == 'y':
        print("Your cost for entry will be $22.00")
    elif id == 'n':
        if age >= 65 or >= 13:
            print("Your cost for entry will be $22.00")
        elif age >= 18:
            print("Your cost for entry will be $28.00")
        elif age >= 3: 
            print("Your cost for entry will be $19.00")
        else:
            print("Your cost for entry will be $0.00")

Keep getting this error:

Traceback (most recent call last):
  File "python", line 15
    if age >= 65 or >= 13:
                    ^
SyntaxError: invalid syntax

I tried everything but i can not see a error. I am also new to python so Im sorry if the error is easy to spot.

Marius Johan · Answer 1 · 2020-05-11T16:56:37.313

3

You've to do it like this:

if age >= 65 or age >= 13:

Look how i had to put in the age variable before both numbers.
You should look at it in this way: that each >= returns either True or False, so if 13 is less or equal to nothing, python don't understand it, and probably aslo many other coding languages.

edited May 11 '20 at 16:56

answered May 11 '20 at 16:35

Marius Johan

394
3
13

score 2 · Answer 2 · answered May 11 '20 at 16:37

2

while the others have answered regarding the syntax, I'm curious whether you really meant age >= 65 or age >= 13 or perhaps age >= 65 or age <= 13?

If you did mean age >= 65 or age >= 13, I think age >= 13 is enough as higher than 65 is also higher than 13.

answered May 11 '20 at 16:37

strivn

309
2
8

Good point. Perhaps OP may have confused `or` with `and`. Such are the pains of a new programmer being born. – Mad Physicist May 11 '20 at 17:01

score 1 · Answer 3 · answered May 11 '20 at 16:34

1

It must be age >= 65 or age >= 13

answered May 11 '20 at 16:34

Stévillis

491
1
6
16

if age >= 65 or >= 13 syntax

3 Answers3