Django:将HTML(包含表单)解析为字典 [英] Django: Parse HTML (containing form) to dictionary

问题描述

我在服务器端创建了一个html表单.

I create a html form on the server side.

<form action="." method="POST">
 <input type="text" name="foo" value="bar">
 <textarea name="area">long text</textarea>
 <select name="your-choice">
  <option value="a" selected>A</option>
  <option value="b">B</option>
 </select>
</form>

所需结果:

{
 "foo": "bar",
 "area": "long text",
 "your-choice": "a",
}

我正在寻找的方法( parse_form())可以这样使用:

The method (parse_form()) I am looking for could be used like this:

response = client.get('/foo/')

# response contains <form> ...</form>

data = parse_form(response.content)

data['my-input']='bar'

response = client.post('/foo/', data)

如何在Python中实现 parse_form()?

How to implement parse_form() in Python?

这与Django不相关，但是Django中有一个功能请求，但几年前被拒绝了:

This is not related to Django, nevertheless, there is an feature request in Django, but it was rejected several years ago: https://code.djangoproject.com/ticket/11797

我围绕基于 lxml 的答案编写了一个小型Python库: html_form_to_dict

I wrote a small Python library around the the lxml based answer: html_form_to_dict

推荐答案

为什么不仅如此?:

def parse_form(content):
    import lxml.html
    tree = lxml.html.fromstring(content)
    return dict(tree.forms[0].fields)

我猜不出使用UserDict的原因

I couldn't guess the reason for using a UserDict

一个小警告:我注意到，当表单包含< select>时，如果未选择任何选项，则返回第一个值；否则，将返回第一个值.我上面基于BS给出的解决方案则返回None

One little caveat: I noticed that when the form contains a <select>, the first value is returned when no option is selected; the solution I gave above based on BS returns None instead

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