Having trouble using <= with "elif" and "and"

Question

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This code is returning a SyntaxError. Can I not use two greater/less than symbols in the same elif statement? Or is the problem my '<='?

def movie_rating(rating):
    if rating <= 5:
        return "Avoid"
    elif rating > 5 and <= 9:
        return "I recommend!"
    else:
        return "Amazing"

`elif rating > 5 and rating <= 9:` The problem is that `<=` needs something on the left side to compare to. we need to be explicit that we want **`rating`** less than equal to 9. — spencer7593, Jan 15 '19 at 17:36
@spencer7593 - thank you so much much! Such a simple mistake I completely overlooked. — Scott, Jan 15 '19 at 17:42
in this context, we've already done the check of `rating <= 5`, so if we fall into the `elif`, we don't need to confirm that rating is greater than 5. That is, we will get the same result with just **`elif rating <= 9:`** (And this is a better way to do the range check, in case we decide to change our Avoid rating to be less than or equal to 4, we only have to change the 5 to a 4 in one place. (If we don't want a rating of 5 to fall through to 'Amazing'.) — spencer7593, Jan 15 '19 at 17:46
Oh, I see! That makes a lot of sense. Thanks for taking the time to explain this to me and giving me a better understanding :) — Scott, Jan 15 '19 at 17:52

Ali Akhtari · Accepted Answer · 2019-01-15T18:22:39.740

0

The problem is because of your and in line 4, this error happening because when you use and you need to define a new condition in other word you should change your code to one of this codes:

def movie_rating(rating):
    if rating <= 5:
        return "Avoid"
    elif rating > 5 and rating <= 9:
        return "I recommend!"
    else:
        return "Amazing"

or change your code to this:

def movie_rating(rating):
    if rating <= 5:
        return "Avoid"
    elif 5> rating <= 9:
        return "I recommend!"
    else:
        return "Amazing"

if you want to know how you can use and in python, follow this link:

How to use boolean 'and' in Python and how use if and else elif or

edited Jan 15 '19 at 18:22

answered Jan 15 '19 at 18:17

Ali Akhtari

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oh yes your right, sorry, that was unwanted. now I changed my answer, and its obvious that rating is always bigger smaller than 5 while its smaller than 9, but my point is that syntax is wrong and Im not taking about logic of this code. – Ali Akhtari Jan 15 '19 at 18:22
1

The `5 <` is not even needed here, since all cases where it is false have already been handled in the `if`. You can just do `if rating <= 5: ... elif rating <= 9: ...` – Blckknght Jan 15 '19 at 18:59

Having trouble using <= with "elif" and "and"

1 Answers1