The error is because
ab[0,4] , ab is a list and you can only index a list with a single integer or a slice, which is what the error would have told you.
There are other problems with the code, see comments below.
print("Welcome to the Urban")
ab = {'J_Cole': 1, 'Drake': 2, 'Jay_Z': 3, 'Beyonce': 4, 'Kendrick_Lamar': 5} # this is not used, overwritten when ab reassigned
input('''Please select your favorite artist:
J_Cole
Drake
Jay_Z
Beyonce
Kendrick_Lamar''') # result of this input not stored, manually have to change names
while True:
ab = ['J_Cole', 'Drake', 'Jay_Z', 'Beyonce', 'Kendrick_Lamar'] # dictionary ab overwritten by this
user_fav_artist = str(input('Select you favorite artist:')) # input returns str , string conversion not needed
user_fav_artist = ab # user input lost reassigned to value of the list ab
if user_fav_artist == str(ab[0,4]): # if the index was valid it would return a string from the list, conversion not needed, user input not stored, wrong way of checking if an item is in a list.
print('Thank you for selecting')
if str(input('Would you like to receive news updates? yes or no:')) == 'yes': # conversion to string not required
continue
else:
print('You can subscribe later if you would like')
break # only breaks out of the loop if don't input 'Yes' is this the required action
else:
print('Your selection is invalid')I will add some ways to improve your code
It would be easier if the artist strings where lower case, when it comes to comparison lower can be used on the users input.
if you want the displayed choice to show each word title cased you can use title.
users_input = 'J_cole'
print(users_input.lower())
value= 'j_cole'
print(value.title())
Output:
j_cole
J_Cole
Rather than manually list the artists in the input, create a string from the list of artists
artists = ['j_cole', 'drake', 'jay_z', 'beyonce', 'kendrick_lamar']
artist_dispaly = '\n'.join(artist.title() for artist in artists)
user_input = input(f'Please selcet your favourite artist:\n{artist_dispaly}')Output:
Please selcet your favourite artist:
J_Cole
Drake
Jay_Z
Beyonce
Kendrick_Lama
To check if a valid artist from the list of artists has been input
user_input = 'Drake'
if user_input.lower() in artists:
print(f'{user_input.title()} is in the list of artists')Output:
Drake is in the list of artists
