将字符串转换为Dict / JSON

时间:2018-10-23 05:29:08

标签: python json python-2.7 dictionary

我正在尝试将以下数据转换成dict,以便我可以拥有key:value对并​​将它们嵌套:

data="Group A\n name : rey\n age : 6\n status : active\n in role : 201\n weight : 25\n interests\n Out Side : 16016\n In Side : 0\n Out : 2804\n\n name : dan\n age : 5\n status : inactive\n in role : 201\n weight : 18\n interests\n Out Side : 16016\n In Side : 0\n Out : 2804\n\n"

问题是,并非所有人都拥有:,而且应该将其中一些归为一类(即Group A的一部分)。 \n换行符绝对可以帮助我将它们分开。

这就是我希望得到的结果:

[
 {
  "Group A":
   [
    {"name": "rey", "age": "6", "status": "active"},
    {"name": "dan", "age": "5", "status": "inactive"}
   ]
 }
]

我现在有什么?我用:

将其中一些分隔成dict
result = {}
for row in data.split('\n'):
  if ':' in row:
    key, value = row.split(':')
    result[key] = value.strip()

这输出我:

{' name ': 'dan', ' weight ': '18', ' In Side ': '0', ' Out ': '2804', ' in role ': '201', ' status ': 'inactive', ' Out Side ': '16016', ' age ': '5'} 但这搞乱了上面显示数据的现有顺序-并非全部都出来了。

我有点从外部程序捕获此数据,因此仅限于Python 2.7版。任何想法都会超级有帮助!

2 个答案:

答案 0 :(得分:0)

您应该在数据中找到模式:

  • 您的数据用空行分隔
  • 内部数据以空格开头

使用这些观察结果,您可以编写:

def parse(data):
    aa = {}
    curRecord = None
    curGroup  = None

    for row in data.split('\n'):
        if row.startswith(' '): 
            # this is a new key in the inner record
            if ':' in row :
                if curRecord == None:
                    curRecord = {}
                    curGroup.append(curRecord)
                key, value = row.split(':')
                curRecord[key.strip()] = value.strip()
        elif row == '': 
            # this signal new inner record
            curRecord = None
        else: 
            # otherwise , it is a new group
            curRecord = None
            curGroup = []
            aa[row.strip()] = curGroup
    return aa

>>> import json
>>> print( json.dumps(parse(data)) );    
{"Group A": [{"name": "rey", ... }, {"name": "dan", ... }]}

答案 1 :(得分:0)

我将使用setdefault在您的网上论坛中创建新列表。如果您有B,C,D ...,这将适用于多个组

import json

def convert_string(data):
    result = {}
    current = ""
    key_no = -1
    for pair in data.split("\n"):
        if ':' not in pair:
            if "Group" in pair:
                result.setdefault(pair,[])
                current = pair
                key_no = -1
        elif "name" in pair:
            result[current].append({})
            key_no +=1
            key, value = pair.split(':')
            result[current][key_no][key.strip()] = value.strip()
        elif all(s not in pair.lower() for s in ("weight","in role","out","in side")):
            key, value = pair.split(':')
            result[current][key_no][key.strip()] = value.strip()
    return result

print (json.dumps(convert_string(d),indent=4))

{
    "Group A": [
        {
            "name": "rey",
            "age": "6",
            "status": "active"
        },
        {
            "name": "dan",
            "age": "5",
            "status": "inactive"
        }
    ]
}