Check out this python library jsondiff , that will help you to identify the diff's

import json

import jsondiff

json1 = json.loads(
    '{"isDynamic": false, "name": "", "value": "SID:<sid>", "description": "instance","argsOrder": 1,"isMultiSelect": false}')

json2 = json.loads(
    '{ "name": "", "value": "SID:<sid>","isDynamic": false, "description": "instance","argsOrder": 1,"isMultiSelect": false}')

res = jsondiff.diff(json1, json2)
if res:
    print("Diff found")
else:
    print("Same")
Answer from Jenish on Stack Overflow
🌐
PyPI
pypi.org › project › jsondiff
jsondiff · PyPI
>>> d = diff({'a': 1, 'delete': 2}, {'b': 3, 'delete': 4}) >>> d {'delete': 4, 'b': 3, delete: ['a']} >>> d[jd.delete] ['a'] >>> d['delete'] 4 # Alternatively, you can use marshal=True to get back strings with a leading $ >>> diff({'a': 1, 'delete': 2}, {'b': 3, 'delete': 4}, marshal=True) {'delete': 4, 'b': 3, '$delete': ['a']} ... jdiff [-h] [-p] [-s {compact,symmetric,explicit}] [-i INDENT] [-f {json,yaml}] first second positional arguments: first second optional arguments: -h, --help show this help message and exit -p, --patch -s {compact,symmetric,explicit}, --syntax {compact,symmetric,explicit} Diff syntax controls how differences are rendered (default: compact) -i INDENT, --indent INDENT Number of spaces to indent.
      » pip install jsondiff
    
Published   Aug 29, 2024
Version   2.2.1
🌐
GitHub
github.com › xlwings › jsondiff
GitHub - xlwings/jsondiff: Diff JSON and JSON-like structures in Python · GitHub
$ jdiff a.json b.json -i 2 $ jdiff a.json b.json -i 2 -s symmetric $ jdiff a.yaml b.yaml -f yaml -s symmetric · Install development dependencies and test locally with · pip install -r requirements-dev.txt # ... do your work ... add tests ... pytest ... This will install the library and cli for jsondiff as well as its runtime dependencies.
Starred by 747 users
Forked by 89 users
Languages   Python
Discussions

Multilevel JSON diff in python - Stack Overflow
Please link me to answer if this has already been answered, my problem is i want to get diff of multilevel json which is unordered. More on stackoverflow.com
🌐 stackoverflow.com
Diff two large JSON array or objects
Yes Firstly you have to load json data in python dictionary using json module/package After that jsondiff module/package help you check different This module/package also compare list,set,etc.👌 If will return empty dictionary {} if there is no different👍 import jsondiff oldJson = {1:"a",2:"b",3:"c"} newJson = {1:1,4:4} r = jsondiff.diff(oldJson,newJson) if r : print(r) else: print("404,No Different Found!") Output: {1: 1, 4: 4, delete: [2, 3]} 😀 json.diff take 1st arg oldJson means from which we are checking different & 2nd newJson. There are 3 syntax 🎲 : compact ( default ) Any Change in Value of key & new insrted key will display normaly symmetric Inserted & delete show differently change show normally explicit 👀 It is detailed Inserted Deleted Changed Show differently import jsondiff oldJson = {1:"a",2:"b",3:"c"} newJson = {1:1,4:4} r = jsondiff.diff(oldJson,newJson,syntax="explicit") if r: print(r) else: print("404,No Different Found!") Output : {insert: {4: 4}, update: {1: 1}, delete: [2, 3]} 😃 Finally 🔥,Now you doubt about how to access them You can access them using symbols eg. r[jsondiff.symbols.insert] OR from jsondiff import symbols r[symbols.insert] There are some other symbols which use in different compare like list,set, etc Note : if you try using insert in compact & update in compact & symmetric then you will get KeyError 😔 because those not exist there import jsondiff from jsondiff import symbols oldJson = {1:"a",2:"b",3:"c"} newJson = {1:1,4:4} r = jsondiff.diff(oldJson,newJson,syntax="explicit") if r: print("Deleted keys are ",r[symbols.delete]) else: print("404,No Different Found!") Output : Deleted keys are [2, 3] 🥳 Thanks for reading 😂 More on reddit.com
🌐 r/learnpython
3
3
February 26, 2022
What's the real difference between a dict and a JSON object (coming from JS background)
JSON is a file format that uses a key - value pair syntax. Keys can only be unicode strings surrounded by doubel quotes, like "name". Values can be: Only certain number formats like 5, -5, 5.5, 1.0E+5 The values true, false, and null Unicode strings in double quotes, like "hello" Array: an ordered, comma separated list of any valid value type Object: a collection of key-value pairs that itself confirms to the JSON syntax ---------------------------------- A Python dict is an object that can have any hashable object as a key. It’s more flexible. A number, a decimal, a string, a tuple, etc can be a key. A Python dict value has no limits (that I know of). It can be any Python object. A string, a number, a function, another dict, a whole entire module. You name it. ---------------------------------- What makes JSON so powerful is that it's an agreed upon format. No matter if you're using Python, Java, PHP, or Ruby, if someone sends your app data in the JSON format, the shape is predictable so your programming language of choice will be able to parse it. How Java, Python, JavaScript, etc. decide to parse JSON into an object will be a little different depending on the language. Python can decode a string or file that confirms to the JSON format into a Python dict. ---------------------------------- One nuance that I wanted to point out is even though JSON stands for "JavaScript Object Notation", it is NOT JavaScript. JSON is a file format/data exchange format. Someone said "So 1 and 1.0 are two different values in Python, while in JSON, they would be the same." That's not quite true. JSON is only a format. 1 and 1.0 in a json file are no more "the same" as 1 and 1.0 are in a txt file. What that person probably meant is that 1 and 1.0 are the same in JavaScript, but that's besides the point because it's important to remember that JSON is NOT JavaScript, it's a format. More on reddit.com
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9
3
October 3, 2022
Comparing Two JSON Files For Differences
Few words... Pandas, dataframe... More on reddit.com
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13
1
August 29, 2022
🌐
Readthedocs
python-json-patch.readthedocs.io › en › latest › commandline.html
Commandline Utilities — python-json-patch 1.22 documentation
usage: jsondiff [-h] [--indent INDENT] [-v] FILE1 FILE2 Diff two JSON files positional arguments: FILE1 FILE2 optional arguments: -h, --help show this help message and exit --indent INDENT Indent output by n spaces -v, --version show program's version number and exit
🌐
JSON Diff
jsondiff.com
JSON Diff - The semantic JSON compare tool
Validate, format, and compare two JSON documents. See the differences between the objects instead of just the new lines and mixed up properties.
🌐
PyPI
pypi.org › project › json-diff
json-diff · PyPI
Compares two JSON files (http://json.org) and generates a new JSON file with the result.
      » pip install json-diff
    
Published   Aug 25, 2019
Version   1.5.0
Top answer
1 of 3
21

Check out this python library jsondiff , that will help you to identify the diff's

import json

import jsondiff

json1 = json.loads(
    '{"isDynamic": false, "name": "", "value": "SID:<sid>", "description": "instance","argsOrder": 1,"isMultiSelect": false}')

json2 = json.loads(
    '{ "name": "", "value": "SID:<sid>","isDynamic": false, "description": "instance","argsOrder": 1,"isMultiSelect": false}')

res = jsondiff.diff(json1, json2)
if res:
    print("Diff found")
else:
    print("Same")
2 of 3
6

UPDATED: See https://eggachecat.github.io/jycm-json-diff-viewer/ for a live demo! Now it has a JS-native implementation.

Affiliation: I am the author of this lib.

Yes! You can diff it with jycm which has a rendering tool out of the box.

It uses LCS, Edit distance and Kuhn–Munkres to diff arrays.

Here's an universal example with set in set and value changes in some set

from jycm.helper import make_ignore_order_func
from jycm.jycm import YouchamaJsonDiffer

left = {
    "set_in_set": [
        {
            "id": 1,
            "label": "label:1",
            "set": [
                1,
                5,
                3
            ]
        },
        {
            "id": 2,
            "label": "label:2",
            "set": [
                4,
                5,
                6
            ]
        }
    ]
}

right = {
    "set_in_set": [
        {
            "id": 2,
            "label": "label:2",
            "set": [
                6,
                5,
                4
            ]
        },
        {
            "id": 1,
            "label": "label:1111",
            "set": [
                3,
                2,
                1
            ]
        }
    ]
}

ycm = YouchamaJsonDiffer(left, right, ignore_order_func=make_ignore_order_func([
    "^set_in_set$",
    "^set_in_set->\\[\\d+\\]->set$"
]))

ycm.diff()

expected = {
    'list:add': [
        {'left': '__NON_EXIST__', 'right': 2, 'left_path': '', 'right_path': 'set_in_set->[1]->set->[1]'}
    ],
    'list:remove': [
        {'left': 5, 'right': '__NON_EXIST__', 'left_path': 'set_in_set->[0]->set->[1]', 'right_path': ''}
    ],
    'value_changes': [
        {'left': 'label:1', 'right': 'label:1111', 'left_path': 'set_in_set->[0]->label',
         'right_path': 'set_in_set->[1]->label', 'old': 'label:1', 'new': 'label:1111'}
    ]
}

assert ycm.to_dict(no_pairs=True) == expected

you can set no_pairs=False to get the all pairs. Here's a rendered example:

As for the example here, you can use it as:

from jycm.helper import make_ignore_order_func
from jycm.jycm import YouchamaJsonDiffer

left = {
    "data": [{"x": 1, "y": 2}, {"x": 3, "y": 4}]
}

right = {
    "data": [{"x": 3, "y": 4}, {"x": 1, "y": 2}]
}

ycm = YouchamaJsonDiffer(left, right, ignore_order_func=make_ignore_order_func([
    "^data",
]))

ycm.diff()

assert ycm.to_dict(no_pairs=True) == {}

Bonus, you the values are interrupted as coordinates on plain, you can even define a operator to determine whether two points should be matched!(Then comparing their values)

Here's the code:

from typing import Tuple

from jycm.helper import make_ignore_order_func
from jycm.jycm import YouchamaJsonDiffer
from jycm.operator import BaseOperator
import math

left = {
    "data": [
        {"x": 1, "y": 1},
        {"x": 10, "y": 10},
        {"x": 100, "y": 100}
    ]
}

right = {
    "data": [
        {"x": 150, "y": 150},
        {"x": 10, "y": 11},
        {"x": 2, "y": 3}
    ]
}


class L2DistanceOperator(BaseOperator):
    __operator_name__ = "operator:l2distance"
    __event__ = "operator:l2distance"

    def __init__(self, path_regex, distance_threshold):
        super().__init__(path_regex=path_regex)
        self.distance_threshold = distance_threshold

    def diff(self, level: 'TreeLevel', instance, drill: bool) -> Tuple[bool, float]:
        distance = math.sqrt(
            (level.left["x"] - level.right["x"]) ** 2 + (level.left["y"] - level.right["y"]) ** 2
        )
        info = {
            "distance": distance,
            "distance_threshold": self.distance_threshold,
            "pass": distance < self.distance_threshold
        }

        if not drill:
            instance.report(self.__event__, level, info)
            return False, 1 if info["pass"] else 0
        return True, 1 if info["pass"] else 0


ycm = YouchamaJsonDiffer(left, right, ignore_order_func=make_ignore_order_func([
    "^data$",
]), custom_operators=[
    L2DistanceOperator("^data->\\[.*\\]$", 10),
])

ycm.diff()

expected = {
    'just4vis:pairs': [
        {'left': 1, 'right': 2, 'left_path': 'data->[0]->x', 'right_path': 'data->[2]->x'},
        {'left': {'x': 1, 'y': 1}, 'right': {'x': 2, 'y': 3}, 'left_path': 'data->[0]',
         'right_path': 'data->[2]'},
        {'left': 1, 'right': 3, 'left_path': 'data->[0]->y', 'right_path': 'data->[2]->y'},
        {'left': {'x': 1, 'y': 1}, 'right': {'x': 2, 'y': 3}, 'left_path': 'data->[0]',
         'right_path': 'data->[2]'},
        {'left': {'x': 1, 'y': 1}, 'right': {'x': 2, 'y': 3}, 'left_path': 'data->[0]',
         'right_path': 'data->[2]'}
    ],
    'list:add': [
        {'left': '__NON_EXIST__', 'right': {'x': 150, 'y': 150}, 'left_path': '', 'right_path': 'data->[0]'}
    ],
    'list:remove': [
        {'left': {'x': 100, 'y': 100}, 'right': '__NON_EXIST__', 'left_path': 'data->[2]', 'right_path': ''}
    ],
    'operator:l2distance': [
        {'left': {'x': 1, 'y': 1}, 'right': {'x': 2, 'y': 3}, 'left_path': 'data->[0]',
         'right_path': 'data->[2]', 'distance': 2.23606797749979, 'distance_threshold': 10,
         'pass': True},
        {'left': {'x': 10, 'y': 10}, 'right': {'x': 10, 'y': 11}, 'left_path': 'data->[1]',
         'right_path': 'data->[1]', 'distance': 1.0, 'distance_threshold': 10,
         'pass': True}
    ],
    'value_changes': [
        {'left': 1, 'right': 2, 'left_path': 'data->[0]->x', 'right_path': 'data->[2]->x', 'old': 1, 'new': 2},
        {'left': 1, 'right': 3, 'left_path': 'data->[0]->y', 'right_path': 'data->[2]->y', 'old': 1, 'new': 3},
        {'left': 10, 'right': 11, 'left_path': 'data->[1]->y', 'right_path': 'data->[1]->y', 'old': 10, 'new': 11}
    ]
}
assert ycm.to_dict() == expected

As you can see jycm report addition and remove for points {'x': 150, 'y': 150} and {'x': 100, 'y': 100} for their distances are too far (more than 10) and value-change for the other two points.

P.S. RENDERER DEMO

🌐
PyPI
pypi.org › project › custom-json-diff
custom-json-diff · PyPI
Python :: 3.12 · Topic · File ... comparison for one reason or another. Enter custom-json-diff, which allows you to specify fields to ignore in the comparison and sorts all fields....
      » pip install custom-json-diff
    
Published   Mar 12, 2025
Version   2.1.6
Find elsewhere
🌐
GitHub
github.com › python273 › prettydiff
GitHub - python273/prettydiff: Diff parsed JSON objects and pretty-print it · GitHub
prettydiff - diff parsed JSON objects and pretty-print it ... from prettydiff import print_diff a = {"a": "hello", "b": True, "c": [1, 3], "d": {"e": {"f": 1}}} b = {"a": "world", "b": False, "c": [1, 2, 3]} # to enable colors: $ python3 -m pip install prettydiff[terminal] print_diff(a, b)
Author   python273
🌐
Substack
codefaster.substack.com › p › json-toolkit-json-diff
json-diff - by Tyler Adams - CodeFaster
December 29, 2020 - In this post, we’ll explore json-diff (a tool from my json-toolkit), how to use it and how to write programs that use its output.
🌐
GitHub
github.com › cpatrickalves › json-diff
GitHub - cpatrickalves/json-diff: A Python script that compares two JSON files and shows their differences.
#> python json_diffs.py examples\file01.json examples\file02.json The values in object ID are different: SGML != SL The values in object GlossTerm are different: Standard Generalized Markup Language != Standard Generalized Language The values in object Abbrev are different: ISO 8879:1986 != ISO 8559:1986 The values in object GlossSeeAlso are different: ['GML', 'XML'] != ['JSO', 'XML'] The data is different
Author   cpatrickalves
🌐
GitHub
github.com › parjun8840 › jsondiff
GitHub - parjun8840/jsondiff: Json diff using python
C:\Users\parjun8840\eclipse-workspace\PythonDev>python jsondiff.py --help usage: jsondiff.py [-h] [-f1 FILE1_PATH] [-f2 FILE2_PATH] JSON DIFF optional arguments: -h, --help show this help message and exit -f1 FILE1_PATH, --FILE1_PATH FILE1_PATH First Json File -f2 FILE2_PATH, --FILE2_PATH FILE2_PATH Second Json file C:\Users\parjun8840\eclipse-workspace\PythonDev> Scenario 1: Both files same content Input files used: json_dict1 ,json_dict1 have same content {"test1": "1", "test2" : "2", "test3" : "abcd", "test4" : "xyz", "test5" : "12ab", "test6" : "12ab" } C:\Users\parjun8840\eclipse-workspace\PythonDev>python jsondiff.py -f1 json_dict1 -f2 json_dict2 INFO: Files exists and non-empty JSON files are same C:\Users\parjun8840\eclipse-workspace\PythonDev> Scenario 2: When one of the file has extra key and other one has different value for the same key.
Author   parjun8840
🌐
Inl
mooseframework.inl.gov › python › testers › JSONDiff.html
JSONDiff | MOOSE
[Tests] design = 'RenameBlockGenerator.md' issues = '#11640 #14128 #16885 #17710' [rename] requirement = 'The system shall be able to rename or renumber mesh blocks by:' [all_ids] type = JSONDiff input = 'rename_block.i' cli_args = 'Mesh/rename/old_block="0 1 3 2" Mesh/rename/new_block="1 2 4 3" Outputs/file_base=all_ids_out' jsondiff = 'all_ids_out.json' detail = 'identifying both old and new blocks by ID,' [] [old_ids_new_names] type = JSONDiff input = 'rename_block.i' cli_args = 'Mesh/rename/old_block="0 1" Mesh/rename/new_block="new_bottom new_right" Outputs/file_base=old_ids_new_names_out
🌐
pytz
pythonhosted.org › opslib › icsutils › jsondiff.html
IcsUtils.JsonDiff Common Library — OpsLib Library alpha documentation
"members": { ... "role": "devops", ... "group": [ "devops" ] ... } ... } >>> json.dump(old_json, open("old.json", "w")) >>> json.dump(new_json, open("new.json", "w")) >>> fp_old = open("old.json", "r") >>> fp_new = open("new.json", "r") >>> engine = Comparator(fp_old, fp_new) >>> res = engine.compare_dicts() >>> print json.dumps(res, sort_keys=True, indent=4) { "members": { "group": { "0": { "+++": "devops", "---": "ops" }, "1": { "---": "devops" } }, "role": { "+++": "devops", "---": "ops" } }, "version": { "+++": "1.3.0", "---": "1.2.0" } }
🌐
Readthedocs
json-delta.readthedocs.io
JSON-delta: a diff/patch pair for JSON-serialized data structures — JSON-delta 2.0 documentation
Non-minimal diffs can now be called for on the command line by running json_diff --fast. Bugfix release 1.1.1 is out. Javascript users and anyone who uses udiffs should upgrade. The Heisenbug referred to below has been fixed, along with a more serious bug: in v1.0 of both the Python and Javascript ...
🌐
Reddit
reddit.com › r/learnpython › diff two large json array or objects
r/learnpython on Reddit: Diff two large JSON array or objects
February 26, 2022 -

I have a Python lambda function downloading a large excel file and converting it to JSON.

This file will be downloaded at least once a day (as the data can change)

I need to push the changed/updated data to an API.

Is there a way for me to compare two JSON files and output the diff?

It would be perfect if it would output multiple arrays of objects.

1 array of objects that have changed (I don’t care what has changed, just need to know that it has)

1 array of removed/deleted objects.

Top answer
1 of 1
4
Yes Firstly you have to load json data in python dictionary using json module/package After that jsondiff module/package help you check different This module/package also compare list,set,etc.👌 If will return empty dictionary {} if there is no different👍 import jsondiff oldJson = {1:"a",2:"b",3:"c"} newJson = {1:1,4:4} r = jsondiff.diff(oldJson,newJson) if r : print(r) else: print("404,No Different Found!") Output: {1: 1, 4: 4, delete: [2, 3]} 😀 json.diff take 1st arg oldJson means from which we are checking different & 2nd newJson. There are 3 syntax 🎲 : compact ( default ) Any Change in Value of key & new insrted key will display normaly symmetric Inserted & delete show differently change show normally explicit 👀 It is detailed Inserted Deleted Changed Show differently import jsondiff oldJson = {1:"a",2:"b",3:"c"} newJson = {1:1,4:4} r = jsondiff.diff(oldJson,newJson,syntax="explicit") if r: print(r) else: print("404,No Different Found!") Output : {insert: {4: 4}, update: {1: 1}, delete: [2, 3]} 😃 Finally 🔥,Now you doubt about how to access them You can access them using symbols eg. r[jsondiff.symbols.insert] OR from jsondiff import symbols r[symbols.insert] There are some other symbols which use in different compare like list,set, etc Note : if you try using insert in compact & update in compact & symmetric then you will get KeyError 😔 because those not exist there import jsondiff from jsondiff import symbols oldJson = {1:"a",2:"b",3:"c"} newJson = {1:1,4:4} r = jsondiff.diff(oldJson,newJson,syntax="explicit") if r: print("Deleted keys are ",r[symbols.delete]) else: print("404,No Different Found!") Output : Deleted keys are [2, 3] 🥳 Thanks for reading 😂
🌐
Packetcoders
packetcoders.io › diff-ing-the-network-jsondiff-part-2
Diff`ing the Network (jsondiff) - Part 2
November 22, 2021 - import jsondiff as jd deleted_arps_symmetric = arp_diff['interfaces'].get(jd.delete) rprint(deleted_arps_symmetric) === { 'Ethernet1/1': { 'ipv4': { 'neighbors': { '10.1.1.2': {'ip': '10.1.1.2', 'link_layer_address': '5000.0009.0000', 'physical_interface': 'Ethernet1/1', 'origin': 'dynamic', 'age': '00:00:09'} } } } } Now we have the details of our missing ARP entry as a Python dictionary, we can use it to perform further actions.
🌐
GitHub
github.com › simonw › csv-diff
GitHub - simonw/csv-diff: Python CLI tool and library for diffing CSV and JSON files · GitHub
% csv-diff one.csv two.csv --key=id --show-unchanged 1 row changed id: 1 age: "4" => "5" Unchanged: name: "Cleo" You can use the --json option to get a machine-readable difference:
Starred by 329 users
Forked by 52 users
Languages   Python 99.6% | Dockerfile 0.4%
🌐
GitHub
github.com › jlevy › pdiffjson
GitHub - jlevy/pdiffjson: View and diff JSON the easy way · GitHub
Just the simplest and fastest way to format, display, and diff JSON directly from the command line.
Starred by 77 users
Forked by 6 users
Languages   Shell
🌐
Keploy
keploy.io › home › community › how to compare two json files?
How to compare two JSON files? | Keploy Blog
June 9, 2024 - Find differences between two JSON files using Python, VS Code, and free online JSON diff tools. Ideal for developers and testers.
🌐
PyPI
pypi.org › project › json-diff-cli
json-diff-cli
August 27, 2024 - JavaScript is disabled in your browser. Please enable JavaScript to proceed · A required part of this site couldn’t load. This may be due to a browser extension, network issues, or browser settings. Please check your connection, disable any ad blockers, or try using a different browser