sort in python w3schools json

stackoverflow.com › questions › 26924812 › python-sort-list-of-json-by-value

Write a function that uses try...except to handle the KeyError, then use this as the key argument instead of your lambda.

def extract_time(json):
    try:
        # Also convert to int since update_time will be string.  When comparing
        # strings, "10" is smaller than "2".
        return int(json['page']['update_time'])
    except KeyError:
        return 0

# lines.sort() is more efficient than lines = lines.sorted()
lines.sort(key=extract_time, reverse=True)

Answer from Ferdinand Beyer on Stack Overflow

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Python JSON Sort

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GeeksforGeeks

geeksforgeeks.org › python › python-json-sort

Python JSON Sort - GeeksforGeeks

July 23, 2025 - In this example, below Python code utilizes the `json` module to parse a JSON array into a list of dictionaries. The script then employs `sorted` with `itemgetter('age')` to sort the list based on the 'age' key.

Stack Overflow

stackoverflow.com › questions › 26924812 › python-sort-list-of-json-by-value

python sort list of json by value - Stack Overflow

Top answer

1 of 4

Write a function that uses try...except to handle the KeyError, then use this as the key argument instead of your lambda.

def extract_time(json):
    try:
        # Also convert to int since update_time will be string.  When comparing
        # strings, "10" is smaller than "2".
        return int(json['page']['update_time'])
    except KeyError:
        return 0

# lines.sort() is more efficient than lines = lines.sorted()
lines.sort(key=extract_time, reverse=True)

2 of 4

You can use dict.get() with a default value:

lines = sorted(lines, key=lambda k: k['page'].get('update_time', 0), reverse=True)

Example:

>>> lines = [
...     {"page": {"url": "url1", "update_time": "1415387875"}, "other_key": {}},
...     {"page": {"url": "url2", "update_time": "1415381963"}, "other_key": {}},
...     {"page": {"url": "url3", "update_time": "1415384938"}, "other_key": {}},
...     {"page": {"url": "url4"}, "other_key": {}},
...     {"page": {"url": "url5"}, "other_key": {}}
... ]
>>> lines = sorted(lines, key=lambda k: k['page'].get('update_time', 0), reverse=True)
>>> for line in lines:
...     print line
... 
{'other_key': {}, 'page': {'url': 'url1', 'update_time': '1415387875'}}
{'other_key': {}, 'page': {'url': 'url3', 'update_time': '1415384938'}}
{'other_key': {}, 'page': {'url': 'url2', 'update_time': '1415381963'}}
{'other_key': {}, 'page': {'url': 'url4'}}
{'other_key': {}, 'page': {'url': 'url5'}}

Though, I would still follow the EAFP principle that Ferdinand suggested - this way you would also handle cases when page key is also missing. Much easier to let it fail and handle it than checking all sorts of corner cases.

GeeksforGeeks

geeksforgeeks.org › python › python-sort-json-by-value

Python | Sort JSON by value - GeeksforGeeks

February 12, 2019 - import json data='''{ "Student":[ { "enrollment_no":"9915103000", "name":"JIIT", "subject":[ { "code":"DBMS", "grade":"C" } ] }, { "enrollment_no":"8815103057", "name":"JSS", "subject":[ { "code":"COA", "grade":"A" }, { "code":"CN", "grade":"A+" } ] } ] }''' # Parsing Json object json_parse = json.loads(data) # iterating for it in json_parse['Student']: for y in it['subject']: print(y['code'],y['grade'],it['enrollment_no'],it['name']) Output : DBMS C 9915103000 JIIT COA A 8815103057 JSS CN A+ 8815103057 JSS Code #2 : By using External library such as Pandas (Sorting in Ascending order).

Linux Hint

linuxhint.com › sort-json-objects-python

How to sort JSON objects in Python – Linux Hint

The JSON file is a very popular medium to exchange data between different types of programming languages. It is a language-independent text-based file format that stores data by using an array and object. The JSON object can be sorted by using built-in python functions, modules, and user-defined ...

Like Geeks

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How To Sort JSON Arrays in Python

January 23, 2024 - Learn how to sort JSON arrays in Python with this tutorial. Master sorting techniques for simple, nested, and multi-criteria data arrangements.

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Python JSON Sort - W3Schools

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GitHub

github.com › JElchison › sort-json

GitHub - JElchison/sort-json: Python script that sorts a JSON object according to its keys. Useful for diff'ing two JSON files.

user@computer:~$ cat abcd.json { "d": 0, "c": 0, "b": 0, "a": { "a3": 1, "a2": 2, "a1": 3 } } user@computer:~$ diff <(./sort-json.py abc.json) <(./sort-json.py abcd.json) 8c8,9 < "c": 0 --- > "c": 0, > "d": 0 · https://docs.python.org/2/library/json.html#json.dump

Author JElchison

W3Schools

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Python List sort() Method

Python Examples Python Compiler ... Q&A Python Bootcamp Python Certificate Python Training ... The sort() method sorts the list ascending by default....

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Medium

varun-verma.medium.com › python-sorting-json-by-keys-30f0d2421136

Python — Sorting JSON by Keys - Verma Varun - Medium

June 17, 2020 - Likewise, if you have JSON that you’d like to sort, you can first convert it to a dictionary and then convert it back to JSON and this time sort it by keys. And this is true for a multi-dimentional dictionary and JSON.

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Python JSON. Lessons for beginners. W3Schools in English

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Python - Sort Lists

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Python JSON

Python Functions Python Arguments Python *args / **kwargs Python Scope Python Decorators Python Lambda Python Recursion Python Generators Python Range Python Arrays Python Iterators Python Modules Python Dates Python Math Python JSON Python RegEx Python PIP Python Try...Except Python String Formatting Python None Python User Input Python VirtualEnv

Career Karma

careerkarma.com › blog › python › python sort(): a how-to guide

Python Sort(): A How-To Guide | Career Karma

December 1, 2023 - Then we declare a JSON array called students with student names and their test scores. Next, we sort our students using our custom sort function by calling sortFunction as our key. On the final line, our code prints out our sorted list.

W3Schools

w3schools.io › file › json-python-read-write

How to read and write JSOn file in Python - w3schools

Supply the sort_keys=True parameter to json dumps method ... Open the file with encoding='utf-8'. Supply ensure_ascii=False parameter to json.dumps method ... import json with open('test.json', 'w', encoding='utf-8') as filehandler: ...

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Python sorted() Function

Python Examples Python Compiler ... Python Bootcamp Python Certificate Python Training ... The sorted() function returns a sorted list of the specified iterable object....

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W3Schools online PYTHON editor

The W3Schools online code editor allows you to edit code and view the result in your browser

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w3schools.com › python › python_challenges_json.asp

Python JSON Code Challenge

Quora

quora.com › How-can-I-get-JSON-data-and-sort-it-by-Python-1

How to get JSON data and sort it by Python - Quora

Answer (1 of 2): import json import requests url1 = 'https://opendata.epa.gov.tw/ws/Data/ATM00625/?$format=json' html = requests.get(url1) # html.encoding = "BIG5" html.encoding = html.apparent_encoding # print(html.text) jsondata = eval(html.text) # jsondata = json.loads(html.text) for ...

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Python JSON Parse

Python JSON Tutorial JSON Convert into JSON Format JSON Sort JSON