python if statement not equal to certain numbers

Question

Is there a way to shorten this if statement?

if i != 9 or i != 23 or i != 25 or i != 33 or i !=35:
    print(i)

It won't matter much for a few elements, you can use a tuple, list etc.. but if you had a lot of values to check a set will be a lot faster — Padraic Cunningham
– Padraic Cunningham, Commented Apr 13, 2016 at 9:32

Padraic Cunningham · Accepted Answer · 2016-04-13 09:39:02Z

3

You can use a set and check if i is not in the set:

 invalid_set = {9, 23,25, 33, 35} 
 if  i not in  invalid_set:
     # all good

A set lookup if O(1) vs O(n) with a list, tuple etc..

answered Apr 13, 2016 at 9:39

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Comments

Ashish · Accepted Answer · 2016-04-13 09:29:25Z

0

how about

if i not in [9,23,25,33,25]:
    print(i)

answered Apr 13, 2016 at 9:29

Ashish

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