如何从存储在列表中的字典中正确访问字典键？

Question

I am a complete beginner reading Crash Course Python by Eric Matthes. Here is my code trying to access a dictionary key, with the dictionaries stored within the list shirts .

red_shirt = {'shirt_color': 'red', 'shirt_price': 20}
blue_shirt = {'shirt_color': 'blue', 'shirt_price': 25}
green_shirt = {'shirt_color': 'green', 'shirt_price': 30}

shirts = [red_shirt, blue_shirt, green_shirt]

user_input = input('Which shirt would you like to purchase?\n:')
for shirt in shirts:

So far I believe I have an issue with the for loop... Should I be using a second for loop to access the keys within the dictionary?

    if shirt['shirt_color'] == 'red':
        #shirt_color = 'red'
        print('You bought the ' + shirt['shirt_color'] + ' shirt for $' + str(shirt['shirt_price']))

Opposed to using k['v'] to access the values of the dictionary, I have also tried using .format .

    elif shirt['shirt_color'] == 'blue':
        #shirt_color = 'blue'
        print('You bought the ' + shirt['shirt_color'] + ' shirt for $' + str(shirt['shirt_price']))
    elif shirt['shirt_color'] == 'green':
        #shirt_color = 'green'
        print('You bought the ' + shirt['shirt_color'] + ' shirt for $' + str(shirt['shirt_price']))
    else:
        print('It seems we do not have the shirt you are looking for, please try again')

Answer 1

I think you almost got what you wanted, you just forgot that you needed to actually reference the user input you requested.

red_shirt = {'shirt_color': 'red', 'shirt_price': 20}
blue_shirt = {'shirt_color': 'blue', 'shirt_price': 25}
green_shirt = {'shirt_color': 'green', 'shirt_price': 30}

shirts = [red_shirt, blue_shirt, green_shirt]

user_input = input('Which shirt would you like to purchase?\n:')
for shirt in shirts:
    if shirt['shirt_color'] == user_input:
        print('You bought the ' + shirt['shirt_color'] + ' shirt for $' + str(shirt['shirt_price']))