Question

how to find whether 5 is in the list of array in python

Answer 1

You need to use key word "in". This allows you to check if something is in tuple, list, dictionary or set.

Examples:

sample_lst = [1,2,3,4,5]

print(5 in sample_lst)

 sample_lst = [1,2,3,4,5]

if 5 in sample_lst:

    #some code 

 

If you want to look for it in something like a list of lists you can do

2dlist = [[1,2,3,4,5],[1,2,3,4,5],[1,2,3,4,5]]

print(any(6 in sublist for sublist in l2))

2dlist = [[1,2,3,4,5],[1,2,3,4,5],[1,2,3,4,5]]

if any(5 in sublist for sublist in 2dlist):

    #some code

Answer 2

for x in arr:

     if x == 5:

          return true

or

if 5 in arr:

   return true