我无法获得单选按钮值

Question

我无法获取单选按钮值。我用html编写

     {% with form as f %}
     <form action="{% url 'app:test' %}" method="POST">
                {% csrf_token %}
    <div>
                {{ f.test1 }}
                                  <label class="js--goTo" for="test1" dataGoTo="2">TEST1</label>
    </div>
    <button type="submit"">SEND</button>
    </form>
   {% endwith %}

forms.py

# -*- coding: utf-8 -*-

from django import forms

RESPONSE_CHOICES = (
   ('1', 'test1'),
   ('2', 'test2'),
)

class InputForm(forms.Form):
    test1 = forms.ChoiceField(required=False,choices=RESPONSE_CHOICES, widget=forms.RadioSelect())

在views.py

中

def test(request):
    if request.method == "POST":
        form = InputForm(data=request.POST)
        if form.is_valid():
            test1 = request.POST.get("test1")
            print(test1)

当我选择test1的单选按钮并放置SEND按钮时，print（test1）显示为None。在这种情况下，我放置了test1，所以我真的不明白为什么test1的1没有打印在print（test1）中。在我的代码中？该如何解决？