python list to json array - Brave Search

How to convert a list of numbers to jsonarray in Python

stackoverflow.com › questions › 19795012 › how-to-convert-a-list-of-numbers-to-jsonarray-in-python

Use the json module to produce JSON output:

import json

with open(outputfilename, 'wb') as outfile:
    json.dump(row, outfile)

This writes the JSON result directly to the file (replacing any previous content if the file already existed).

If you need the JSON result string in Python itself, use json.dumps() (added s, for 'string'):

json_string = json.dumps(row)

The L is just Python syntax for a long integer value; the json library knows how to handle those values, no L will be written.

Demo string output:

>>> import json
>>> row = [1L,[0.1,0.2],[[1234L,1],[134L,2]]]
>>> json.dumps(row)
'[1, [0.1, 0.2], [[1234, 1], [134, 2]]]'

Answer from Martijn Pieters on Stack Overflow

geeksforgeeks.org › python › convert-python-list-to-json

Convert Python List to Json - GeeksforGeeks

July 23, 2025 - In this example, a Python list containing a mix of integers and strings (list_1) is converted to a JSON-formatted string (json_str) using json.dumps().

stackoverflow.com › questions › 19795012 › how-to-convert-a-list-of-numbers-to-jsonarray-in-python

json - How to convert a list of numbers to jsonarray in Python - Stack Overflow

Use the json module to produce JSON output:

import json

with open(outputfilename, 'wb') as outfile:
    json.dump(row, outfile)

This writes the JSON result directly to the file (replacing any previous content if the file already existed).

If you need the JSON result string in Python itself, use json.dumps() (added s, for 'string'):

json_string = json.dumps(row)

The L is just Python syntax for a long integer value; the json library knows how to handle those values, no L will be written.

Demo string output:

>>> import json
>>> row = [1L,[0.1,0.2],[[1234L,1],[134L,2]]]
>>> json.dumps(row)
'[1, [0.1, 0.2], [[1234, 1], [134, 2]]]'

import json
row = [1L,[0.1,0.2],[[1234L,1],[134L,2]]]
row_json = json.dumps(row)

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stackoverflow.com › questions › 71979765 › how-to-convert-python-list-to-json-array

How to convert python list to JSON array? - Stack Overflow

You can achieve this by using built-in json module

import json

arrayJson = json.dumps([{"email": item} for item in pyList])

Try to Google this kind of stuff first. :)

import json

array = [1, 2, 3]
jsonArray = json.dumps(array)

By the way, the result you asked for can not be achieved with the list you provided.

You need to use python dictionaries to get json objects. The conversion is like below

Python -> JSON
list -> array
dictionary -> object

And here is the link to the docs https://docs.python.org/3/library/json.html

Python Examples

pythonexamples.org › python-list-to-json

Python List to JSON

import json a_list = [{'a':1, 'b':2}, {'c':3, 'd':4}] json_string = json.dumps(a_list) print(json_string) ... In this example, we will take a Python List of Lists and convert it to JSON string.

quora.com › How-do-I-convert-a-list-to-JSON-in-Python

How to convert a list to JSON in Python - Quora

To convert a Python List to JSON, use json. dumps() function.

techwithtech.com › home › converting list to json array in python: how to?

Converting List to JSON Array in Python: How To? - Tech With Tech

October 27, 2022 - You can import it like this: ... ... similar structure to JSON arrays, so they are converted directly to JSON arrays by using the dumps method:...

blog.finxter.com › 5-best-ways-to-convert-a-python-list-to-json

5 Best Ways to Convert a Python List to JSON – Be on the Right Side of Change

February 20, 2024 - The json.dumps() method in Python can be used to convert a list to a JSON formatted string.

askpython.com › home › convert a list to json string in python [easy step-by-step]

Convert a List to JSON String in Python [Easy Step-By-Step] - AskPython

May 30, 2023 - The dumps() function takes a Python list as its parameter, converts it into a JSON string, and then returns that JSON string. The syntax for using the dumps() function is given below.

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Convert Python List to JSON Examples - Spark By {Examples}

March 27, 2024 - How to convert a list to JSON in Python? You can use the json.dumps() method to convert a Python list to a JSON string. This function takes a list as an

datacamp.com › tutorial › json-data-python

Python JSON Data: A Guide With Examples | DataCamp

December 3, 2024 - While Python is capable of storing intricate data structures such as sets and dictionaries, JSON is limited to handling strings, numbers, booleans, arrays, and objects. Let’s look at some of the differences: To convert a Python list to JSON format, you can use the json.dumps() method from ...

stackoverflow.com › questions › 10973614 › convert-json-array-to-python-list

Convert JSON array to Python list - Stack Overflow

Copyimport json

array = '{"fruits": ["apple", "banana", "orange"]}'
data  = json.loads(array)
print(data['fruits']) 
# the print displays:
# ['apple', 'banana', 'orange']

You had everything you needed. data will be a dict, and data['fruits'] will be a list

Tested on Ideone.

Copyimport json
array = '{"fruits": ["apple", "banana", "orange"]}'
data  = json.loads(array)
fruits_list = data['fruits']
print fruits_list

w3schools.com › python › gloss_python_convert_into_JSON.asp

Python Convert From Python to JSON

Remove List Duplicates Reverse ... ... If you have a Python object, you can convert it into a JSON string by using the json.dumps() method....

appdividend.com › python-list-to-json

How to Convert List to JSON in Python (Variables and Files)

November 24, 2025 - The most efficient and straightforward way to convert a Python List is by using the json.dumps() method.

medium.com › @wepypixel › how-to-convert-a-list-to-json-python-simple-technique-pypixel-c329f6de5d7a

How to Convert a List to JSON Python? Simple Technique -PyPixel | by Stilest | Medium

August 26, 2023 - To convert a Python list to a JSON, we can make use of Python’s built-in json module, we do not need to explicitly install it. This module provides methods to serialize Python objects into JSON format and deserialize JSON data back into Python objects.

stackoverflow.com › questions › 37661863 › convert-a-list-to-json-objects

python - Convert a list to json objects - Stack Overflow

Just adding onto alexce's response, you can easily convert the restructured data into JSON:

import json
json.dumps(result)

There are some potential security concerns with top-level arrays. I'm not sure if they're still valid with modern browsers, but you may want to consider wrapping it in an object.

import json
json.dumps({'results': result})

To solve this, you need to split the input list into chunks, by 7 in your case. For this, let's use this approach. Then, use a list comprehension producing a list of dictionaries:

>>> from pprint import pprint
>>> l = [['String 1'],['String 2'],['String 3'],['String 4'],['String 5'],
... ['String 6'],['String 7'],['String 8'],['String 9'],['String 10'],
... ['String 11']]
>>> def chunks(l, n):
...     """Yield successive n-sized chunks from l."""
...     for i in range(0, len(l), n):
...         yield l[i:i+n]
... 
>>>
>>> result = [{"title%d" % (i+1): chunk[i][0] for i in range(len(chunk))} 
              for chunk in chunks(l, 7)]
>>> pprint(result)
[{'title1': 'String 1',
  'title2': 'String 2',
  'title3': 'String 3',
  'title4': 'String 4',
  'title5': 'String 5',
  'title6': 'String 6',
  'title7': 'String 7'},
 {'title1': 'String 8',
  'title2': 'String 9',
  'title3': 'String 10',
  'title4': 'String 11'}]

geeksforgeeks.org › python-convert-list-of-dictionaries-to-json

Python - Convert list of dictionaries to JSON - GeeksforGeeks

December 12, 2023 - The task of converting lists to a nested dictionary in Python involves mapping elements from multiple lists into key-value pairs, where each key is associated with a nested dictionary. For example, given the lists a = ["gfg", "is", "best"], b = ["ratings", "price", "score"], and c = [5, 6, 7], the g ... Let us see how to convert a given nested dictionary into an object Method 1 : Using the json module.

w3schools.com › python › python_json.asp

Remove List Duplicates Reverse a String Add Two Numbers · Python Examples Python Compiler Python Exercises Python Quiz Python Challenges Python Practice Problems Python Server Python Syllabus Python Study Plan Python Interview Q&A Python Bootcamp Python Training ... JSON is a syntax for storing and exchanging data. JSON is text, written with JavaScript object notation. Python has a built-in package called json, which can be used to work with JSON data.

dev.to › wepypixel › how-to-convert-a-list-to-json-python-best-simple-technique-2oee

How to Convert a List to JSON Python? Best Simple Technique - DEV Community

September 10, 2023 - To convert a Python list to a JSON, we can make use of Python’s built-in json module, we do not need to explicitly install it. This module provides methods to serialize Python objects into JSON format and deserialize JSON data back into Python objects.

stackoverflow.com › questions › 9769811 › how-to-convert-list-of-list-of-lists-to-json-array-in-python

How to convert list of list (of lists) to json array in python? - Stack Overflow

The parentheses in your original code are unbalanced. If I remove one parentheses in the beginning:

>>> a = [["thisid", 24024502], ["points", [[["lat", 37.8732041], ["lon", -122.2562601]], [["lat", 37.8729153], ["lon", -122.2561566]]]], ["name", "Latimer Hall"]]
>>> b = dict(a)
>>> for i, l in enumerate(b['points']):
...     b['points'][i] = dict(l)
... 
>>> b
{'points': [{'lat': 37.8732041, 'lon': -122.2562601}, {'lat': 37.8729153, 'lon': -122.2561566}], 'thisid': 24024502, 'name': 'Latimer Hall'}
>>>

Then I can serialize it to json.

stackoverflow.com › questions › 49626788 › converting-a-json-strings-list-to-a-json-array-in-python › 49626876

Converting a JSON strings list to a JSON array in Python - Stack Overflow

decode JSON strings into dicts and put them in a list, last, convert the list to JSON

json_list = []
json_list.append(json.loads(JSON_STRING))
json.dumps(json_list)

or more pythonic syntax

output_list = json.dumps([json.loads(JSON_STRING) for JSON_STRING in JSON_STRING_LIST])

Use json.dumps before json.loads to convert your data to dictionary object This also helps prevent valueError: Expecting property name enclosed in double quotes.

Ex:

import json
myJSONStringList = ['{"user": "testuser", "data": {"version": 1, "timestamp": "2018-04-03T09:23:43.388Z"}, "group": "33"}',
'{"user": "otheruser", "data": {"version": 2, "timestamp": "2018-04-03T09:23:43.360Z", }, "group": "44"}']

print([json.loads(json.dumps(i)) for i in myJSONStringList])

Output:

[u'{"user": "testuser", "data": {"version": 1, "timestamp": "2018-04-03T09:23:43.388Z"}, "group": "33"}', u'{"user": "otheruser", "data": {"version": 2, "timestamp": "2018-04-03T09:23:43.360Z", }, "group": "44"}']