从烧瓶中的动态无线电场中获取价值

Question

我正在开发一个测验应用程序，但是我无法从我有RadioButton的表单中获取答案。

相关代码： 这是我的html表单：

{% for answer in answers %}
   <form method="POST" action="">
        <div class="btn-group-lg" data-toggle="buttons">
             <label class="btn btn-outline-info">
                  <input type="radio" name="options" id="option" class="btn btn-primary" value="Submit" required> {{answer.answer}}
             </label>
        </div>
   </form>
{% endfor %}

在这里，我有.py代码，可以在其中创建我的RadioButton的表单，在其中可以创建根目录，并且可以使用我的功能：

class QuestionForm(Form):
    radio_button = RadioField('option', choices=[])

question_list = []
answer_list = []

@app.route('/question/<int:index>/', methods=['GET','POST'])
def question(index):
    questions = getQuestions()
    for question in questions:
        question_list.append(question['question_id'])
    answers = getQuestionAnswers(question_list[index])
    questions_lenght = len(questions)
    form = QuestionForm()
    if request.method == 'POST' and form.validate():
        option = form.radio_button.data
        print(option)
        return render_template('question.html', question=questions[index]["question"], answers=answers, index=index, questions_lenght=questions_lenght, form=form)

    return render_template('question.html', question=questions[index]["question"], answers=answers, index=index, questions_lenght=questions_lenght, form=form)

def getQuestions():
    mysql = MySQLdb.connect(host="localhost",  
                    user="",        
                    passwd="", 
                    db="",
                    cursorclass=MySQLdb.cursors.DictCursor)    
    cur = mysql.cursor()
    cur.execute("SELECT * FROM questions")
    questions = cur.fetchall()
    cur.close()
    return questions

def getQuestionAnswers( question_id ):
    mysql = MySQLdb.connect(host="localhost",  
                    user="",        
                    passwd="", 
                    db="",
                    cursorclass=MySQLdb.cursors.DictCursor)    
    cur = mysql.cursor()
    cur.execute("SELECT * FROM answers WHERE question_id = %s", [question_id])
    answers = cur.fetchall()
    cur.close()
    return answers

if __name__ == '__main__':
    app.secret_key=''
    app.run(debug=True)  

我的问题出在以下代码块中：

if request.method == 'POST' and form.validate():
        option = form.radio_button.data
        print(option)

什么都没打印。