django - **或pow()不受支持的操作数类型: 'tuple' and 'dict'

Question

我在本教程中进行了一些更改:http://www.jacobian.org/writing/dynamic-form-generation/，所有这些我都将在下面作为摘要发布。当我尝试访问经过动态表单 View 的页面时，它将引发TypeError。这是回溯:http://dpaste.com/793196/。

forms.py(testing/forms.py)

from django import forms

class TestForm(forms.Form):
    test_id = forms.CharField()
    user_id = forms.CharField()
    complete_time = forms.IntegerField()

    def __init__(self, *args, **kwargs):
        extra = kwargs.pop('extra')
        super(TestForm, self).__init__(*args **kwargs)

        for i, question in enumerate(extra):
            self.fields['custom_%s' % i] = forms.CharField(label=question)
    def extra_answers(self):
        for name, value in self.cleaned_data.items():
            if name.startswith('custom_'):
                yield (self.fields[name].label, value)

views.py(testing/views.py)

def exam(request, test_id):
    user = request.user
    t = get_object_or_404(Test, pk=test_id)
    if user.is_authenticated():
        extra_questions = get_questions(request, test_id)
        if request.method == 'POST':

            form = TestForm(request.POST or None, extra=extra_questions)

            if form.is_valid():
                for (question, answer) in form.extra_answers():
                    save_answer(request, question, answer)
                return HttpResponseRedirect('/tests/')
        else:
            form = TestForm(None, extra=extra_questions)

        return render(request, 'testing/exam.html', { 't' : t, 'form' : form })
    else:
        return HttpResponseRedirect('/')

def get_questions(request, test_id):
    t = get_object_or_404(Test, pk=test_id)
    questions = t.question_set.all()
    for question in questions:
        title = question.question
        qlist = []
        qlist.append(title) 

在我竭尽全力寻求答案的过程中，我们将不胜感激。

Answer 1

您不小心忘记了逗号。

super(TestForm, self).__init__(*args, **kwargs)