Question

In: Computer Science

In Python Modify the program so it contains four columns: name, year, price and rating (G,PG,R…)...

In Python

  • Modify the program so it contains four columns: name, year, price and rating (G,PG,R…)
  • Enhance the program so it provides a find by rating function that lists all of the movies that have a specified rating

def list(movie_list):
if len(movie_list) == 0:
print("There are no movies in the list.\n")
return
else:
i = 1
for row in movie_list:
print(str(i) + ". " + row[0] + " (" + str(row[1]) + ")")
i += 1
print()

def add(movie_list):
name = input("Name: ")
year = input("Year: ")
movie = []
movie.append(name)
movie.append(year)
movie_list.append(movie)
print(movie[0] + " was added.\n")   

def delete(movie_list):
number = int(input("Number: "))
if number < 1 or number > len(movie_list):
print("Invalid movie number.\n")
else:
movie = movie_list.pop(number-1)
print(movie[0] + " was deleted.\n")
  
def display_menu():
print("COMMAND MENU")
print("list - List all movies")
print("add - Add a movie")
print("del - Delete a movie")
print("exit - Exit program")
print()

def main():
movie_list = [["Monty Python and the Holy Grail", 1975],
["On the Waterfront", 1954],
["Cat on a Hot Tin Roof", 1958]]

display_menu()
  
while True:
command = input("Command: ")
if command == "list":
list(movie_list)
elif command == "add":
add(movie_list)
elif command == "del":
delete(movie_list)
elif command == "exit":
break
else:
print("Not a valid command. Please try again.\n")
print("Bye!")

if __name__ == "__main__":
main()

I just don't get how to modify it. Any help will be appreciated!

Solutions

Expert Solution

Please find the answer below.Given code is in python, Hence indentation is very important . Make sure you are
referring screenshot to match indentation after coping the code.
Please do comments in case of any issue. Also, don't forget to rate the question. Thank You So Much.

def list(movie_list):
if len(movie_list) == 0:
print("There are no movies in the list.\n")
return
else:
i = 1
for row in movie_list:
print(str(i) + ". " + row[0] + " (" + str(row[1]) + ") Rate : "+str(row[3])+" @ $"+str(row[2]))
i += 1
print()

def add(movie_list):
name = input("Name : ")
year = input("Year : ")
price = input("Price : ")
rating = input("Rating : ")
movie = []
movie.append(name)
movie.append(year)
movie.append(price)
movie.append(rating)
movie_list.append(movie)
print(movie[0] + " was added.\n")   

def delete(movie_list):
number = int(input("Number: "))
if number < 1 or number > len(movie_list):
print("Invalid movie number.\n")
else:
movie = movie_list.pop(number-1)
print(movie[0] + " was deleted.\n")
  
def display_menu():
print("COMMAND MENU")
print("list - List all movies")
print("add - Add a movie")
print("del - Delete a movie")
print("exit - Exit program")
print()

def main():
movie_list = [["Monty Python and the Holy Grail", 1975,190.90,"G"],
["On the Waterfront", 1954,3190.90,"A"],
["Cat on a Hot Tin Roof", 1958,1490.90,"PG"]]
  
display_menu()
  
while True:
command = input("Command: ")
if command == "list":
list(movie_list)
elif command == "add":
add(movie_list)
elif command == "del":
delete(movie_list)
elif command == "exit":
break
else:
print("Not a valid command. Please try again.\n")
print("Bye!")

if __name__ == "__main__":
main()


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