我有一个json文件需要更新。我将它转换为python dict(嵌套)来更新它。这是输入，但可以是任何部门。我相信有更好的方法来做这件事，但不知道。在

最后通牒除了更新之外，我还想执行创建/删除操作。在

这是脚本和输入文件# Now find TARGET value in nested key value chain

# Replace old value with NEWVALUE

import json

from pprint import pprint

d1 = open('jinputstack.json', 'r')

d1 = json.load(d1)

def traverse(obj, path=None, callback=None):

"""

Traverse Python object structure, calling a callback function for every element in the structure,

and inserting the return value of the callback as the new value.

"""

if path is None:

path = []

if isinstance(obj, dict):

value = {k: traverse(v, path + [k], callback)

for k, v in obj.items()}

elif isinstance(obj, list):

value = [traverse(elem, path + [[]], callback)

for elem in obj]

else:

value = obj

if callback is None:

# print("Starting value Found-----------------------------------------------------")

print(value)

return value

else:

print(path, value)

return callback(path, value)

def traverse_modify(obj, target_path, action):

"""

Traverses any arbitrary object structure and performs the given action on the value,

replacing the node with the

action's return value.

"""

target_path = to_path(target_path)

pprint(value)

pprint(target_path)

def transformer(path, value):

if path == target_path:

print(action)

d2 = data["groups"][0]["properties"][1]["value"]["data"][2]["object"]["name"].update(action)

return d2

else:

return value

return traverse(obj, callback=transformer)

def to_path(path):

"""

Helper function, converting path strings into path lists.

>>> to_path('foo')

['foo']

>>> to_path('foo.bar')

['foo', 'bar']

>>> to_path('foo.bar[]')

['foo', 'bar', []]

"""

if isinstance(path, list):

return path # already in list format

def _iter_path(path):

#pprint(path.split)

for parts in path.split('[]'):

for part in parts.strip('.').split('.'):

yield part

yield []

return list(_iter_path(path))[:-1]

def updateit(newvalue):

data["groups"][0]["properties"][1]["value"]["data"][2]["object"]["name"] = newvalue

print(data["groups"][0]["properties"][1]["value"]["data"][2]["object"]["name"])

return data["groups"][0]["properties"][1]["value"]["data"][2]["object"]["name"]

traverse_modify(d1, d1["groups"][0]["properties"][1]["value"]["data"][1]["object"]["name"], updateit("XXXXXXXXXXXXXX"))

json_data = json.dumps(data)

f = open("jinputstack.json","w")

f.write(json_data)

f.close()

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作者：文森特·德里森