Python解析查询字符串列表 [英] Python parsing query string to list

问题描述

  videos [0] [type]我有一个表单提交数据到服务器，如下所示： = Vimeo的&安培; 
 videos [0] [moments] [0] [time] = 11& 
 videos [0] [moments] [0] [lng] = 111& 
 videos [0] [moments] [0] [lat] = 111& 
 videos [0] [moments] [1] [time] = 222& 
 videos [0] [moments] [1] [lng] = 222& 
 videos [0] [moments] [1] [lat] = 222& 
 videos [1] [type] = YouTube& 
 videos [1] [moments] [0] [time] = 111& 
 videos [1] [moments] [0] [lng] = 111& 
 videos [1] [moments] [0] [lat] = 111 
 ... 
  

我正在使用Flask，我希望能够遍历视频和时刻，但是似乎没有办法做到这一点。我试图在谷歌搜索图书馆，但我的谷歌福是今晚弱。

有什么建议吗？感谢！

编辑：基于lazy1的回答，我将他/她的代码修改为

  def add（root，path，value）：
 for path [： -  1]：$ b $ root root = root.setdefault（part，{} ）
 root [path [-1]] = value 
 $ b $ def parse（s）：
 items = {} 
 for key，parse_qsl（s） ：
 parts = filter（None，re.split（'[\ [\]]'，key））
 name = parts [0] 
如果名称不在项目中：
 items [name] = {} 
 add（items [name]，parts [1：]，value）
 return items 
   
 
会产生一个哈希值：
 
 $ p $  {'map'：{ 'title'：'orange'}，'videos'：{'1'：{'moments'：{'0'：{'lat'：'111'，'lng'：'111'，'time' '''}}，'type'：'YouTube'}，'0'：{'moments'：{'1'：{'lat'：'222'，'lng'：'222'，'time' 222'}，'0'：{'lat'：'111'，'lng'：'111'，'ti我'：'11'}}，'type'：'Vimeo'}}} 
  

查询，如下所示：

  map [title] = orange& 
 videos [0] [type] = Vimeo& 
 videos [0] [moments] [0] [time] = 11& 
 videos [0] [moments] [0] [lng] = 111& 
 videos [0] [moments] [0] [lat] = 111& 
 videos [0] [moments] [1] [time] = 222& 
 videos [0] [moments] [1] [lng] = 222& 
 videos [0] [moments] [1] [lat] = 222& 
 videos [1] [type] = YouTube& 
 videos [1] [moments] [0] [time] = 111& 
 videos [1] [moments] [0] [lng] = 111& 
 videos [1] [moments] [0] [lat] = 111 
 ... 
  

您可以使用 urlparse .parse_qsl 来获取查询参数。然而，您需要手动构建视频对象。

示例实现可以是：

pre> def add（root，path，value）：
for path [： - 1]：$ b $ root root = root.setdefault（part，{}）
root [路径[-1]] =值

def parse（s）：
videos = {}
for key，parse_qsl（s）中的值：
parts =过滤器（None，re.split（'[\ [\]]'，key））
insert（videos，parts [1：]，value）
返回视频


I have a form that submits data to the server that looks like the following:

videos[0][type]=Vimeo&
  videos[0][moments][0][time]=11&
  videos[0][moments][0][lng]=111&
  videos[0][moments][0][lat]=111&
  videos[0][moments][1][time]=222&
  videos[0][moments][1][lng]=222&
  videos[0][moments][1][lat]=222&
videos[1][type]=YouTube&
  videos[1][moments][0][time]=111&
  videos[1][moments][0][lng]=111&
  videos[1][moments][0][lat]=111
...

I am using Flask and I would like to be able to loop through the videos and moments but it seems like there isn't a way to do that. I tried looking for libraries on Google but my Google-fu is weak tonight.

Any suggestions? Thanks!

EDIT: Based on lazy1's answer, I modified his/her code to

def add(root, path, value):
  for part in path[:-1]:
    root = root.setdefault(part, {})
  root[path[-1]] = value

def parse(s):
  items = {}
  for key, value in parse_qsl(s):
    parts = filter(None, re.split('[\[\]]', key))
    name = parts[0]
    if name not in items: 
      items[name] = {}
    add(items[name], parts[1:], value)
  return items

that will generate a hash:

{'map': {'title': 'orange'}, 'videos': {'1': {'moments': {'0': {'lat': '111', 'lng': '111', 'time': '111'}}, 'type': 'YouTube'}, '0': {'moments': {'1': {'lat': '222', 'lng': '222', 'time': '222'}, '0': {'lat': '111', 'lng': '111', 'time': '11'}}, 'type': 'Vimeo'}}}

for a query that looks like:

map[title]=orange&
videos[0][type]=Vimeo&
  videos[0][moments][0][time]=11&
  videos[0][moments][0][lng]=111&
  videos[0][moments][0][lat]=111&
  videos[0][moments][1][time]=222&
  videos[0][moments][1][lng]=222&
  videos[0][moments][1][lat]=222&
videos[1][type]=YouTube&
  videos[1][moments][0][time]=111&
  videos[1][moments][0][lng]=111&
  videos[1][moments][0][lat]=111
...

解决方案

You can use urlparse.parse_qsl to get the query parameters. However you'll need manually to construct the video objects.

Example implementation can be:

def add(root, path, value):
    for part in path[:-1]:
        root = root.setdefault(part, {})
    root[path[-1]] = value

def parse(s):
    videos = {}
    for key, value in parse_qsl(s):
        parts = filter(None, re.split('[\[\]]', key))
        insert(videos, parts[1:], value)
    return videos

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