使用换行符将json转换为字符串并在python中转义

Question

how to convert using python below payloads:

{
    "abc": {
        "i": "1212",
        "j": "add"
    }
}

to

"{\n\n    \"abc\": {\n        \"i\": \"1212\",\n        \"j\": \"add\"\n    }\n}"

Answer 1

You can use the optional indent parameter of json.dump and json.dumps to add newlines and indent to the generated string.

>>> import json
>>> payload = {
...     "assessmentstatus": {
...         "id": "D37002079003",
...         "value": "In-Progress"
...     }
... }
...
>>> json.dumps(payload)
'{"assessmentstatus": {"id": "D37002079003", "value": "In-Progress"}}'
>>> json.dumps(payload, indent=0)
'{\n"assessmentstatus": {\n"id": "D37002079003",\n"value": "In-Progress"\n}\n}'
>>> json.dumps(payload, indent=2)
'{\n  "assessmentstatus": {\n    "id": "D37002079003",\n    "value": "In-Progress"\n  }\n}'

With properly displayed whitespace:

>>> print(json.dumps(payload, indent=2))
{
  "assessmentstatus": {
    "id": "D37002079003",
    "value": "In-Progress"
  }
}

---

It seems you actually want the string including the enclosing " and with all the " within the string escaped. This is surprisingly tricky using Python's repr , as it always tries to use either ' or " as the outer quotes so that the quotes do not have to be escaped.

What seems to work, though, is to just json.dumps the JSON string again :

>>> json.dumps(json.dumps(payload, indent=2))
'"{\\n  \\"assessmentstatus\\": {\\n    \\"id\\": \\"D37002079003\\",\\n    \\"value\\": \\"In-Progress\\"\\n  }\\n}"'
>>> print(json.dumps(json.dumps(payload, indent=2)))
"{\n  \"assessmentstatus\": {\n    \"id\": \"D37002079003\",\n    \"value\": \"In-Progress\"\n  }\n}"

Answer 2

Im assuming it has newlines since its in a file

with open('file.json') as f: data = json.load(f)

Then do what you want with the data

Answer 3

You can save data to a file in JSON format like this

import json

data  = {
    "assessmentstatus": {
        "id": "D37002079003",
        "value": "In-Progress"
    }
}
with open("file.txt", "w") as file:
   json.dump(data, file, indent=4)

To retrieve this data you can do

import json

with open("file.txt") as file:
    data = json.load(file)

print(data)

JSON is a way to store store data in a string format and be able to parse that data to convert it to actual data.

So trying to convert "{\\n\\n "assessmentstatus": {\\n "id": "D37002079003",\\n "value": "In-Progress"\\n }\\n}" on your own is the wrong way to go at this, since JSON is great at doing this.