IN PYTHON

5.26 LAB: Word frequencies (dictionaries)

Implement the build_dictionary() function to build a word frequency dictionary from a list of words.

Ex: If the words list is:

TEMPLATE

["hey", "hi", "Mark", "hi", "mark"] 

the dictionary returned from calling build_dictionary(words) is:

{'hey': 1, 'hi': 2, 'Mark': 1, 'mark': 1} 

Ex: If the words list is:

["zyBooks", "now", "zyBooks", "later", "zyBooks", "forever"] 

the dictionary returned from calling build_dictionary(words) is:

{'zyBooks': 3, 'now': 1, 'later': 1, 'forever': 1} 

The main code builds the word list from an input string, calls build_dictionary() to build the dictionary, and displays the dictionary sorted by key value.

Ex: If the input is:

hey hi Mark hi mark 

the output is:

Mark: 1 hey: 1 hi: 2 mark: 1

TEMPLATE BELOW

# The words parameter is a list of strings. def build_dictionary(words): # The frequencies dictionary will be built with your code below. # Each key is a word string and the corresponding value is an integer # indicating that word's frequency. ''' Type your code here (remove the "pass" statement below) ''' pass

# The following code asks for input, splits the input into a word list, # calls build_dictionary(), and displays the contents sorted by key. if __name__ == '__main__': words = input().split() your_dictionary = build_dictionary(words) sorted_keys = sorted(your_dictionary.keys()) for key in sorted_keys: print(key + ': ' + str(your_dictionary[key]))