Modify the sentence-generator program so that it inputs its vocabulary from a set of text files at startup. The filenames are nouns.txt, verbs. txt, articles.txt, and prepositions.txt.
(Hint: Define a single new function, getWords)
This function should expect a filename as an argument.
The function should open an input file with this name, define a temporary list, read words from the file, and add them to the list.
The function should then convert the list to a tuple and return this tuple.
Call the function with an actual filename to initialize each of the four variables for the vocabulary.)
The code below
import random
articles = ("A", "THE")
nouns = ("BOY", "GIRL", "BAT", "BALL")
verbs = ("HIT", "SAW", "LIKED")
prepositions = ("WITH", "BY")
def sentence():
"""Builds and returns a sentence."""
return nounPhrase() + " " + verbPhrase()
def nounPhrase():
"""Builds and returns a noun phrase."""
return random.choice(articles) + " " + random.choice(nouns)
def verbPhrase():
"""Builds and returns a verb phrase."""
return random.choice(verbs) + " " + nounPhrase() + " " + \
prepositionalPhrase()
def prepositionalPhrase():
"""Builds and returns a prepositional phrase."""
return random.choice(prepositions) + " " + nounPhrase()
def main():
"""Allows the user to input the number of sentences
to generate."""
number = int(input("Enter the number of sentences: "))
for count in range(number):
print(sentence())
# The entry point for program execution
if __name__ == "__main__":
main()
