Answered

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This program exercise #4 wants the user to write a program in python that contains a list of movies titles, years and movie rating. You will need to display a menu option that allows the user to list all of the movies, add a movie, delete a movie and exit out of the program. This will be done using lists and the functions to add an element to a list and how to delete an element to a list. The program should be written utilizing functions in python for the main function, the display_menu function, the delete function, the add function and the list movie function. You can place this all in one python file or include them in various python files that include them into the main program. Let me know if you have any questions with this exercise. Output Screen: COMMAND MENU list - List all movies add - Add a movie del - Delete a movie exit - Exit program Command List: list 1. Monty Python and the Holy Grail, 1979, R 2. On the Waterfront, 1954, PG 3. Cat on a Hot Tim Roof, 1958, R Command: add Name: Gone with the Wind Year: 1939 Rating: PG Gone with the Wind was added.

Sagot :

MrRoyal

Answer:

The program in Python is as follows:

def display_menu(titles,years,ratings):

   for i in range(len(titles)):

       print(str(i+1)+". "+titles[i]+", "+str(years[i])+", "+str(ratings[i]))

   

def delete(titles,years,ratings):

   del_item = input("Movie: ")

   if del_item in titles:

       print(del_item,"was deleted")

       index = titles.index(del_item)

       titles.pop(index)

       years.pop(index)

       ratings.pop(index)

   return(titles,years,ratings)

   

def add(titles,years,ratings):

   title = input("Title: ")

   year = int(input("Year: "))

   rating = int(input("Ratings: "))

   print(title,"was added")

   titles.append(title)

   years.append(year)

   ratings.append(rating)

   

   return(titles,years,ratings)

titles = []

years = []

ratings = []

print("COMMAND MENU list\nlist - List movies\nadd - Add movie del\ndel - Delete movie exit\nexit - Exit program")

menu = (input("Command List: "))

while(menu.lower() == "list" or menu.lower() == "add" or menu.lower() == "del"):

   if menu.lower() == "list":

       display_menu(titles,years,ratings)

   elif menu.lower() == "add":

       titles, years, ratings = add(titles,years,ratings)

   elif menu.lower() == "del":

       titles, years, ratings = delete(titles,years,ratings)

   menu = (input("Command List: "))

   elif menu.lower() == "exit":

       break

print("Exited!!!")

Explanation:

See attachment for complete program where comments are used to explain some lines of the program

View image MrRoyal
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