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Python

Posted by Marquis Hurley
Marquis Hurley
631 Points

list indexing allowing user to pull data from list

So I need help allowing the user to pull information from list to allow a player to be goal keeper. I just can't seem to find the way to access the information.. Any hints would be nice..

da_roster = []

while True:
    add_player = input("Would you would you like to add some players the team? Yes or No?  ")
    if add_player.lower() == 'yes':
        player_name = input("What is the name of the player?  ")
        da_roster.append(player_name)
    if add_player.lower() =='no':
        break
else:
    print(da_roster)
print("There are", len(da_roster), "players on the team.")

count = 1

for player in da_roster:
    print("{} is player nunmber {}.".format(player, count))
    count += 1 


# TODO Select a goalkeeper from the above roster

print("Please select a goal keeper from your team. Choose player 1 - {}.".format(len(da_roster)))

goal_keeper = input()


print("Your goal keeper for this game will be...") 


# TODO Print the goal keeper's name
# Remember that lists use a zero based index

[MOD: added ```python formatting -cf]

Moosa Bonomali
Moosa Bonomali
6,297 Points 
da_roster = []

while True: 
    add_player = input("Would you would you like to add some players the team? Yes or No? ") 
    if add_player.lower() == 'yes': 
        player_name = input("What is the name of the player? ") 
        da_roster.append(player_name) 
    elif add_player.lower() =='no': 
        break 
    else: 
        print(da_roster) 
        print("There are", len(da_roster), "players on the team.")

count = 1

for player in da_roster:
    print("{} is player nunmber {}.".format(player, count)) 
    count += 1

Please take a look at this link on how you can better format your post. https://teamtreehouse.com/community/howto-guide-markdown-within-posts The above is not the solution but an illustration of how your code post would look like when formatted.

From what you have described, please confirm this. You would want a user to add players to the roster and then also allow the user to select the player who will be the goal keeper? Do you want to go through just adding players to the roster and then when you are done, you get out of the loop and pick a player to be the goal keeper?

Marquis Hurley
Marquis Hurley
631 Points

yes that is exactly what i want to happen

1 Answer

Moosa Bonomali
Moosa Bonomali
6,297 Points
Moosa Bonomali
Moosa Bonomali
6,297 Points

Here is what I have added;

# TODO Select a goalkeeper from the above roster

print("Please select a goal keeper from your team. Choose player 1 - {}.".format(len(da_roster)))

#convert input to int
goal_keeper = int(input()) - 1
print("Your goal keeper for this game will be {}".format(da_roster[goal_keeper]))

Items in a list will start at index = 0, however, in your application, the user has to choose a player starting from 1, hence the need to subtract 1 from the user input, so that we can correctly access the required player. In this case, the goal_keeper value is holding the index of the goalkeeper in the da_roster list.

You never can be too sure the user will provide the correct inputs, so when you get to it, I would suggest you add error handling.