如何使用Python在json文件中查找和替换所有出现的json字典？(How to find and replace all occurrences of a json dictionary in json file using Python?)

 我试图用另一个字典替换json文件中所有出现的以下json字典： 
 
 要替换的字典 
 
{
   "AP": {
           "UFD": xxx,
           "DF": "xxxxxx"
         },
   "IE": xxxx,
   "$": "PDAE"
}
 
 要替换的字典 
 
{
   "FileNameModifierItemPosition": 1,
   "FileNameModifierItemType": 0,
   "FileNameModifierParameters": {
                                  "DateParameters": {
                                                      "DT": 0,
                                                      "UFD": true,
                                                      "DF": "yyyyMMdd"
                                                    },
                                  "FqlParameters":  {
                                                      "FExpression": null
                                                    }
                                 },
    "IE": true,
    "$": "PDMFN
}
 
 但我希望能够解析要替换的字典并提取IE，UFD，DF的值并分配给第二个字典中的corressponding字段。 如何使用正则表达式在Python中完成此操作？ 

I am trying to replace all occurrences of the following json dictionary in a json file with another dictionary:
 
dictionary to be replaced
 
{
   "AP": {
           "UFD": xxx,
           "DF": "xxxxxx"
         },
   "IE": xxxx,
   "$": "PDAE"
}
 
dictionary to be replaced with
 
{
   "FileNameModifierItemPosition": 1,
   "FileNameModifierItemType": 0,
   "FileNameModifierParameters": {
                                  "DateParameters": {
                                                      "DT": 0,
                                                      "UFD": true,
                                                      "DF": "yyyyMMdd"
                                                    },
                                  "FqlParameters":  {
                                                      "FExpression": null
                                                    }
                                 },
    "IE": true,
    "$": "PDMFN
}
 
but I wanna be able to parse the dictionary to be replaced and extract the values of IE, UFD, DF and assign to the corressponding fields in the second dictionary. How can I accomplish this in Python using regex?

原文：https://stackoverflow.com/questions/36490123