如何在 python web.py 中使用单选按钮 [英] How to use radio buttons in python web.py

问题描述

我正在使用 web.py 框架来创建一个简单的 Web 应用程序

I am using web.py framework to create a simple web application

我想创建一个单选按钮所以我写了下面的代码

I want to create a radio button so I wrote the following code

from web import form
from web.contrib.auth import DBAuth
import MySQLdb as mdb



render = web.template.render('templates/')

urls = (
  '/project_details',  'Project_Details',  
)

class Project_Details:

    project_details = form.Form( 
        form.Radio('Home Page'),
        form.Radio('Content'),
        form.Radio('Contact Us'),
        form.Radio('Sitemap'),
        )

    def GET(self):
        project_details = self.project_details()
        return render.projectdetails(project_details)  

当我使用 url localhost:8080 运行代码时，我看到以下错误

When I run the code with url localhost:8080 I am seeing following error

Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/web/application.py", line 237, in process
    return p(lambda: process(processors))
  File "/usr/lib/python2.7/site-packages/web/application.py", line 565, in processor
    h()
  File "/usr/lib/python2.7/site-packages/web/application.py", line 661, in __call__
    self.check(mod)
  File "/usr/lib/python2.7/site-packages/web/application.py", line 680, in check
    reload(mod)
  File "/home/local/user/python_webcode/index.py", line 68, in <module>
    class Project_Details:
  File "/home/local/user/python_webcode/index.py", line 72, in Project_Details
    form.Radio('password'),
TypeError: __init__() takes at least 3 arguments (2 given)

单选按钮需要传入什么参数才能避免这个错误

What parameter need to be passed in the radio button in order to avoid this error

推荐答案

查看 source，看起来您必须为所有项目使用一个 Radio 构造函数，因为同一个 Radio 对象实际上会生成多个 元素.

Looking at the source, it looks like you have to use one Radio constructor for all of your items as the same Radio object will actually generate multiple <input> elements.

试试像::

project_details = form.Form( 
    form.Radio('details', ['Home Page', 'Content', 'Contact Us', 'Sitemap']),
    )

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