词典列表中的随机键值

Question

New to using Python

I have a list, full of dictionaries with country names and their capitals, from the list I want to randomly grab the key value from country, display a question, "What is the capital of Australia? I then want to randomly select two other capitals from my list, as well as the correct answer, shuffle them and get the user to select their choice. I have a VERY rough Idea. I'm fine with print and asking for input and all that. The main issue is, how do I make the list of answers to include the correct answer, plus the two random answers. I hope from what is below you can see what I'm trying to do.

Alist = [{country": "Australia", "capital": "Canberra"} {country": "UK", "capital": "London"}.....] #list goes on

AnswerList[ ]

randomCountry = random.choice(Alist, ['country'])

randomAnswers = random.sample(Alist, ['capital'], 2)

AnswerList.append (randomAnswers) #not sure on how to get the correct answer in here

random.shuffle(AnswerList)

Answer 1

Following up on pvgs comment, using a slightly different data structure may be a little bit clearer in this case

import random

pool={"Australia":"Canberra",
      "United Kingdom":"London",
      "Germany":"Berlin",
      "France":"Paris",
      "Brasil":"Brasília",
      "Thailand":"Bangkok"}
totalAnswersOffered=3

This way you can directly access the capital of a country: pool["France"] yields Paris .

Select a random country from the list of available country names and add correct answer to a list:

randomCountry = random.choice(list(pool.keys()))
answerList = [pool[randomCountry]]

Then fill the list with different, wrong answers:

while len(answerList)<totalAnswersOffered:
    randomAnswer = random.choice(list(pool.values()))
    if randomAnswer not in answerList:
        answerList.append(randomAnswer)

And finally randomize the order:

random.shuffle(answerList)

An example of the result would be this:

>>> print(randomCountry, answerList)
Thailand ['London', 'Bangkok', 'Paris']

Answer 2

right = Alist[<rightKey>]

AnswerList.append(right)

wrong = list(Alist.keys())
wrong.remove(<rightKey>)

for key in random.sample(wrong, 2):
    AnswerList.append(Alist[key])

random.shuffle(AnswerList)