Question

Write a function named words_in_both that takes two strings as parameters and returns a set of the words contained in both strings. You can assume all characters are letters or spaces. Capitalization shouldn't matter: "to", "To", "tO", and "TO" should all count as the same word. The words in the set should be all lower-case. For example, if one string contains "To", and the other string contains "TO", then the set should contain "to".

You can use Python's split() funciton, which breaks up a string into a list of strings.

For example:

sentence = 'Not the comfy chair!'
print(sentence.split())
['Not', 'the', 'comfy', 'chair!']

Answer 1

Thanks for the question. Below is the code you will be needing. Let me know if you have any doubts or if you need anything to change. 

Let me know for any help with any other questions.

Thank You!

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def words_in_both(s1, s2):
    s1_words = [word.lower() for word in s1.split()]
    s2_words = [word.lower() for word in s2.split()]

    s1_set = set(s1_words)
    s2_set = set(s2_words)
    common = s1_set.intersection(s2_set)
    return common


print(words_in_both('Hello there how are you doing. How is john', 'Hello how is mary'))

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1: Proje 2 def words_in_both(31, 32): 31_words = [word. lower() for word in 31.split()] 32_words [word.lower() for word in 32.split()] 3 4 5 6 31_get = set (31_words) 32_set - set (32_words) Coron = 31_set.intersection (32_set) return common 7 9 10 11 print (words_in_both('Hello there how are you doing. How is john', 'Hello how is mary')) 12 Run: 7292020.ax C:\Users\User\PycharmProjects\Analydics\venv\Scripts\python.exe C:/Users/User/PycharmProjects/Ana {"how', 'is', 'hello'} Process Imshed with exit code 0 re E