我有一个名为all_questions的列表：
all_questions={
{
'question': "Mac and Pc share which of the following things:",
'answer1': "They are both expensive",
'answer2': "They are both Touch Screen",
'answer3': "Intel is now inside both computers",
'answer4': "They both have good security",
'correct_answer': 3,
},
{
'question': "Who was the other person that co-founded Microsoft:",
'answer1': "Bill Gates",
'answer2': "Nathan Myhrvold",
'answer3': "Paul Allen",
'answer4': "Richard Rashid",
'correct_answer': 3,
},
{
'question': "When did Windows 10 come out:",
'answer1': "July 29,2015",
'answer2': "July 30,2015",
'answer3': "July 28,2015",
'answer4': "It was not released in July",
'correct_answer': 1,
}
}
该列表有问题和答案。我正在尝试创建一个提示按钮，删除随机按钮，并取出正确的答案。提示按钮的代码是：
def hint_btn():
choices=[choice1,choice2,choice3,choice4]
q = all_questions[current_question]
h = [('correct_answer', 1), ('correct_answer', 2), ('correct_answer', 3), ('correct_answer', 4)]
f = all_questions.popitem()
h = choices.pop(choices.index(f))
false_answer = random.choice(choices)
false_answer2 = random.choice(choices)
if (random.random() > 0.5):
hint1 = choices[q['correct_answer']]
hint1.pack()
hint_btn()
hint2 = choices[false_answer]
hint2.pack_forget()
hint3 = choices[false_answer2]
hint3.pack_forget()
choices.append(h)
但是，我收到一个错误说：
TypeError: unhashable type: 'dict' for 'correct_answer': 1
答案 0 :(得分：3)
错误意味着您正在执行以下操作：
dictionary[key]
...其中key是＆＃34;不可用的类型＆＃34;。字典的关键必须是＆＃34; hashable＆＃34; （基本上，一些无法改变的东西 - 即：字符串，元组，数字等）。
在您的情况下，您尝试使用词典作为键创建字典（all_questions）。一个简单的解决方案可能是使all_questions成为列表而不是字典（注意使用方括号而不是大括号）：
all_questions = [
{
'question': "Mac and Pc share which of the following things:",
'answer1': "They are both expensive",
'answer2': "They are both Touch Screen",
...
},
{
...
},
...
]
有关＆＃34; hashable类型＆＃34;的更多信息。意思是，请看这个问题：Hashable, immutable
您似乎正在努力解决这个问题，我已经看到两个或三个问题都处理相同的数据结构。我想建议你重新考虑一下你的数据结构。如果您在尝试对某些数据执行某些操作时遇到困难，有时解决方案是更改数据，以便更容易操作。
您想要一个问题，一个正确的答案和一些不正确的答案，以便您可以在屏幕上显示它们。您还希望能够在某个时间点随机删除不正确的答案。正确？对我而言，这意味着您的正确和错误答案应存储为单独的实体。
您可能需要考虑将不正确的答案放在列表中，并分别保留正确的答案。例如：
all_questions = [
{
"question": "Mac and Pc share which of the following things:",
"correct answer": "Intel is now inside both computers",
"incorrect answers": [
"They are both expensive",
"They are both Touch Screen",
"They both have good security",
],
},
...
]
要为第一个问题创建所有答案的列表，您可以执行以下操作：
q = all_questions[0]
answers = q["incorrect answers"]
answers.append(q["correct answer"])
random.shuffle(answers)
通过上述内容，answers现在是所有可能答案的列表，但是按随机顺序排列。
要删除两个随机错误答案，以便您有一个正确答案和两个错误答案，再次按随机顺序排列，您可以这样做：
answers = random.sample(q["incorrect answers"], 2)
answers.append(q["correct answer"])
random.shuffle(answers)
在任何一种情况下，当用户选择答案时，您可以轻松地将其与正确答案进行比较：
if user_answer == q["correct answer"]:
print "correct!"
else
print "incorrect"
请注意，上述内容并非最佳方式。有很多选择。例如，问题可以是字典键，值可以是答案列表，其中正确的答案始终是第一个。例如：
all_questions = {
"Mac and Pc share which of the following things": [
"They both have intel inside",
"They are both expensive",
"They are both Touch Screen",
"They both have good security"
]
}
这样，要删除两个随机项，首先要删除正确答案并将其保存到变量中。然后随机删除两个项目并将它们与正确的答案结合起来。
关键是，数据结构很重要。考虑一下如何访问数据，以及如何轻松构建数据。在您的情况下，您需要能够轻松获得正确答案，并且您需要能够轻松地从错误答案列表中删除随机项目。定义您的结构以使其变得简单。