linear.py

list_of_elements = [4, 2, 8, 9, 3, 7]

x = int(input("Enter number to search: "))

found = False

for i in range(len(list_of_elements)):
 if(list_of_elements[i] == x):
  found = True
  print("%d found at %dth position"%(x,i))
  break
 
if(found == False):
 print("%d is not in list"%x)