Python 我如何在 django Forms 中进行shuffle

我有一个像QUZ这样的项目.但我需要在问题中打乱答案. 以下是我的代码: Template.html

 <form method="post">
    {% csrf_token %}
    <h3>{{ current_question.text }}</h3>
    {{ form.selected_answer }}
     <button type="submit">Next</button>
  </form>

Views.py

        if request.method == 'POST':
            form = QuestionForm(request.POST, question=current_question)
            if form.is_valid():
                user_answer = form.cleaned_data['selected_answer']
                user_test.useranswer_set.update_or_create(question=current_question,
                                                          defaults={'selected_answer': user_answer})
                return redirect('test', test_id=test_id)
        else:
            form = QuestionForm(question=current_question)

这是我的Django表格.我试着这样做，但不起作用:

from django import forms
from .models import Answer
import random
from django.db.models.query import QuerySet


class QuestionForm(forms.Form):
    selected_answer = forms.ModelChoiceField(
        queryset=Answer.objects.none(),
        widget=forms.RadioSelect,
        empty_label=None
    )

    def __init__(self, *args, question=None, **kwargs):
        super().__init__(*args, **kwargs)
        if question:
            answers = list(question.answer_set.all())
            random.shuffle(answers)
            self.fields['selected_answer'].queryset = answers