Soultion Exercise 37 - list of words common to two strings

Exercise 37

Write a Python program that creates a list whose elements are the common words to two strings s1 and s2.

Solution

def commonWords(s1 , s2):
    listCommonWords = []
    # convert s1 and s2 to python lists
    L1 = s1.split()
    L2 = s2.split()
    # browsing the list elements
    for word in L1:
        if( word in L2 and word not in listCommonWords):
            listCommonWords.append(word)
    return listCommonWords
# Exemple for testing algorithm 
s1 = "Python is oriented object programming language"
s2 = "Python is a programming language created in 1991"
print("The common words : " , commonWords(s1,s2))
# display : The common words :  ['Python', 'is', 'programming', 'language']