How to simplify if?

Question

There is a long condition:

if j==465 or j==641 or j==465 or j==641 or j==638 or j==637 or j==644 or j==645 or j==648 or j==1120 or j==1122 or j==1124 и т.д.

Can I simplify it somehow?

metazet metazet 2.588 2 13 26 · Answer 1 · 2011-09-16T07:30:29

Store all numeric values in an array, and rewrite if:

 elements = [465, 641, ...] if j in elements: #do something

Ilya Pirogov Ilya Pirogov 10.4k one 14 25 · Answer 2 · 2011-09-16T08:05:57

For this case, it is better to use sets:

 elements = frozenset([465,641,638,637,644,645,648,1120,1122,1124]) if j in elements: pass

Kozlov Sergei Kozlov Sergei 2,322 ten 12 · Answer 3 · 2011-09-16T07:30:39

 if j in [465,641,638,637,644,645,648,1120,1122,1124]

3 answers 3