Solution Exercise 42: even and odd list in python

Exercise 42

Write a Python algorithm as a function which takes as a parameter a list of integers L and which returns the list obtained from L by inserting just after each number the string 'even' or 'odd' depending on the parity of number. Example if L = [2, 11, 25, 6, 14], the algorithm returns the list: [2, 'even', 11, 'odd', 25, 'odd', 6, 'even', 14, 'even']

Solution

def listEvenOdd (L):
     # initialization of the searched list
     lEventOdd = []
     for n in L:
          # Add the element n to the list
          lEventOdd.append(n)
          if n% 2 == 0:
               lEventOdd.append ('even')
          else:
               lEventOdd.append ('odd')
    
     return lEventOdd

# Example
L = [21, 12, 54, 71, 13, 20]
print (listEvenOdd (L))
# [21, 'odd', 12, 'even', 54, 'even', 71, 'odd', 13, 'odd', 20, 'even']