How can I write an IF statement with two possibilities

Question

I'm a beginner programer and am trying to write a program that will put users into their key stage in school based on their year. The answer may be very simple but I'm a beginner so I would really appreciate your help.

This is the code I've written for it:

 answer = int(input("What year are you in?"))
 if answer < 7 or 8 or 9:
     print("You are in Key Stage 3")
 elif answer < 10 or 11:
     print("You are in Key Stage 4")
 else:
     print("You are in Key Stage 5")

Year 7-9 is key stage 3, year 10-11 is key stage 4 and year 12-13 is key stage 5. The program is supposed to output 'key stage' 3, 4 or 5 depending on what the user put in. Whenever i put in any year it outputs key stage 3, even if I input '11' or '13' which it shouldn't.

Why do you write ```if answer < 7 or 8 or 9:```? I see what you mean to do there, and the line ```if answer < =9 and answer > =7:``` does the same. Or as suggested you can use ```if answer in (7, 8, 9): ``` — Péter Leéh, Sep 09 '19 at 08:00
Instead of doing `if answer < =9 and answer > =7:` we could use `if 7 <= answer <= 9:`. — Matthias, Sep 09 '19 at 08:05

Arkistarvh Kltzuonstev · Answer 1 · 2019-09-09T08:02:43.370

0

Try this :

if answer in (7, 8, 9):
     print("You are in Key Stage 3")
elif answer in (10, 11):
     print("You are in Key Stage 4")
else:
     print("You are in Key Stage 5")

or this :

if 7 <= answer <= 9:
     print("You are in Key Stage 3")
elif 10 <= answer <= 11:
     print("You are in Key Stage 4")
else:
     print("You are in Key Stage 5")

edited Sep 09 '19 at 08:02

answered Sep 09 '19 at 07:59

Arkistarvh Kltzuonstev

6,824
7
26
56

This does not work since he is checking for answer < 7 and < 10 – Carsten Sep 09 '19 at 08:00
@Carsten He told in description : **Year 7-9 is key stage 3** – Arkistarvh Kltzuonstev Sep 09 '19 at 08:01

How can I write an IF statement with two possibilities

1 Answers1