Question

Please complete the following: Write a Python script to do the following: 1. Ask the use to enter several sentences, one at a time in a loop). To end the sentence entry, the user enters a blank (empty) sentence. 2. Extract each word from each sentence and put it in a list. This will require at least one loop to go through each sentence in the list. It is up to you how you want to get the words in the sentence. As you get the words, put them into another list. 3. After you get the list of all the words, calculate the number of times each word. Display each word (only once, with the number of times it appears in the whole set of data entry. In order to do this: a. Process the data to create a dictionary with the word as the key, and the count as the value. b. When displaying the results, iterate through the dictionary so you can control the way the information is displayed. DO NOT simply print the whole dictionary at once. C. The words are not case sensitive. For example, "House" and "house" are the same words. d. Ignore punctuation. To simply things, if punctuation is entered, only a period is assumed at the end of a sentence. Example interaction: Program prompts the user for sentences, terminated but a blank/empty sentence: User enters: The house of thunder. User enters: The top of the list. User enters: <blank line> Program displays: the: 3 house: 1 of: 2 thunder: 1 top: 1 list: 1 Submit the script, with header comments and any other comments you feel are necessary, to the folder for this assignment

Answer 1

# Declares a list to store sentences sentences = [] sen = print("Enter sentences. Blank statement to terminate.") # Loops till empty sentence entered by the user while True: # Accepts a sentence input("Enter a sentence: ") # Checks if the sentence entered by the user is not empty if sen: # Adds the sentence at the end of the sentences list sentences.append(sen) # Otherwise empty sentence else: # stop the loop break # Declartes a list to store words words = [] # Loops till number of sentences and extracts each sentence for sen in sentences: # Converts the current sentence to lower case # then split it with space wo = sen.lower().split() # Loops till number of words in current sentences for win wo: # Adds the current word at the end of the words list words.append(w) # Declares a dictornary to store each word frequency wordFrequency = {}

# Loops till number of words, and extracts each word for wo in words: # Checks if current word in not available in the dictonary if wo not in wordFrequency: # Counts number of times current word wo available # in the list words # Stores the number in the dictionary key wo as word wordFrequency[wo] = words.count (wo) print("Frequency of words") # Loops till end of the dictionay and extracts each key for wo in wordFrequency: # Displays the key as word and value as frequency print (wo, ": ", wordFrequency (wo])

# Declares a list to store sentences
sentences = []

print("Enter sentences. Blank statement to terminate.")
# Loops till empty sentence entered by the user
while True:
# Accepts a sentence
sen = input("Enter a sentence: ")
# Checks if the sentence entered by the user is not empty
if sen:
# Adds the sentence at the end of the sentences list
sentences.append(sen)
# Otherwise empty sentence
else:
# stop the loop
break

# Declartes a list to store words
words = []
# Loops till number of sentences and extracts each sentence
for sen in sentences:
# Converts the current sentence to lower case
# then split it with space
wo = sen.lower().split()
# Loops till number of words in current sentences
for w in wo:
# Adds the current word at the end of the words list
words.append(w)

# Declares a dictornary to store each word frequency
wordFrequency = {}

# Loops till number of words, and extracts each word
for wo in words:
# Checks if current word in not available in the dictonary
if wo not in wordFrequency:
# Counts number of times current word wo available
# in the list words
# Stores the number in the dictionary key wo as word
wordFrequency[wo] = words.count(wo)

print("Frequency of words")
# Loops till end of the dictionay and extracts each key
for wo in wordFrequency:
# Displays the key as word and value as frequency
print(wo, ": ", wordFrequency[wo])

Sample Output:

Enter sentences. Blank statement to terminate.
Enter a sentence: The house of thunder.
Enter a sentence: The top of the list.
Enter a sentence:
Frequency of words
the : 3
house : 1
of : 2
thunder. : 1
top : 1
list. : 1