How To Convert Python List To JSON
Python has a json library that can parse JSON from strings or files. The library parses JSON into a Python dictionary or list. It can also convert Python dictionaries or lists into JSON strings. We often came across a situation where we need to convert from one data structure to another.
Python has so many data structures to work with, and each structure adds something to the table. If you are working with APIs, then we need to deal with JSON data. In this tutorial, we will see How To Convert Python List To JSON Example.
Python List to JSON
To convert Python list to json, use the json.dumps[] method. The json.dumps[] is a built-in Python method that takes a list as an argument and returns json data type. The json.dumps[] method also converts any types such as dict, str, int, float, bool, None into JSON.
But first, you need to import the json package into your program. Import it, then make a simple list, and then write json.dumps[list].
See the following code.
# app.py import json data = ["DisneyPlus", "Netflix", "Peacock"] json_string = json.dumps[data] print[json_string]Output
pyt python3 app.py ["DisneyPlus", "Netflix", "Peacock"] pytPython jsonlibrary can parse JSON from strings or files. The library parses JSON into a Python dictionary or list. It can also convert Python dictionaries or lists into JSON strings.
Convert JSON to Python Object [Dict]
To convert json to a dictionary in Python, use the json.loads[] method. The json.loads[] method takes a json string as an argument and returns the dictionary object.
See the following code.
# app.py import json json_data = '{"name": "Krunal", "city": "Rajkot"}' python_obj = json.loads[json_data] print[python_obj["name"]] print[python_obj["city"]]Output
pyt python3 app.py Krunal Rajkot pytConvert JSON to Python Object [List]
To convert the JSON to Python Object type in Python, use the json.loads[] method. The json.loads[] is a built-in method that takes a json string as an argument and returns the Python object.
See the following code.
# app.py import json array = '{"drinks": ["coffee", "tea", "water"]}' data = json.loads[array] for element in data['drinks']: print[element]Output
pyt python3 app.py coffee tea water pytWrite Python JSON data to a file.
To write a json data into a file, use the with open[] function in the w mode and then use the json.dump[] method to write all the content in the file.
Okay, lets implement a program on how to write the JSON data into a file.
See the following code.
Output
In your app.json file, you have the data json written.
utf8-encode
If we want to get the utf8-encoded, then write the following code.
# app.py import json data = {"Eleven": "Millie", "Mike": "Finn", "Will": "Noah"} with open['app.json', 'w', encoding='utf-8'] as f: json.dump[data, f, ensure_ascii=False, indent=4]The following indented output will be written in the file.
Output
{ "Eleven": "Millie", "Mike": "Finn", "Will": "Noah" }We can get the utf8-encodedfile as opposed toascii-encodedusing the following code.
# app.py import json data = {"Eleven": "Millie", "Mike": "Finn", "Will": "Noah"} with open['app.json', 'w', encoding='utf-8'] as f: f.write[json.dumps[data, ensure_ascii=False]]Output
{"Eleven": "Millie", "Mike": "Finn", "Will": "Noah"}On Windows, the encoding=utf-8 argument to open is still necessary.
We can avoid storing an encoded copy of the data in memory [the result of dumps], and to output utf8-encoded bytestrings in Python 2 and 3, use the following code.
import json, codecs with open['app.txt', 'wb'] as f: json.dump[data, codecs.getwriter['utf-8'][f], ensure_ascii=False]The codecs.getwriter[] function call redundant in Python 3 but required for Python 2.
Finally, that is it for converting Python List To JSON is over.
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Python has a json library that can parse JSON from strings or files. The library parses JSON into a Python dictionary or list. It can also convert Python dictionaries or lists into JSON strings. We often came across a situation where we need to convert from one data structure to another.
Python has so many data structures to work with, and each structure adds something to the table. If you are working with APIs, then we need to deal with JSON data. In this tutorial, we will see How To Convert Python List To JSON Example.
Python List to JSON
To convert Python list to json, use the json.dumps[] method. The json.dumps[] is a built-in Python method that takes a list as an argument and returns json data type. The json.dumps[] method also converts any types such as dict, str, int, float, bool, None into JSON.
But first, you need to import the json package into your program. Import it, then make a simple list, and then write json.dumps[list].
See the following code.
# app.py import json data = ["DisneyPlus", "Netflix", "Peacock"] json_string = json.dumps[data] print[json_string]Output
pyt python3 app.py ["DisneyPlus", "Netflix", "Peacock"] pytPython jsonlibrary can parse JSON from strings or files. The library parses JSON into a Python dictionary or list. It can also convert Python dictionaries or lists into JSON strings.
Convert JSON to Python Object [Dict]
To convert json to a dictionary in Python, use the json.loads[] method. The json.loads[] method takes a json string as an argument and returns the dictionary object.
See the following code.
# app.py import json json_data = '{"name": "Krunal", "city": "Rajkot"}' python_obj = json.loads[json_data] print[python_obj["name"]] print[python_obj["city"]]Output
pyt python3 app.py Krunal Rajkot pytConvert JSON to Python Object [List]
To convert the JSON to Python Object type in Python, use the json.loads[] method. The json.loads[] is a built-in method that takes a json string as an argument and returns the Python object.
See the following code.
# app.py import json array = '{"drinks": ["coffee", "tea", "water"]}' data = json.loads[array] for element in data['drinks']: print[element]Output
pyt python3 app.py coffee tea water pytWrite Python JSON data to a file.
To write a json data into a file, use the with open[] function in the w mode and then use the json.dump[] method to write all the content in the file.
Okay, lets implement a program on how to write the JSON data into a file.
See the following code.
Output
In your app.json file, you have the data json written.
utf8-encode
If we want to get the utf8-encoded, then write the following code.
# app.py import json data = {"Eleven": "Millie", "Mike": "Finn", "Will": "Noah"} with open['app.json', 'w', encoding='utf-8'] as f: json.dump[data, f, ensure_ascii=False, indent=4]The following indented output will be written in the file.
Output
{ "Eleven": "Millie", "Mike": "Finn", "Will": "Noah" }We can get the utf8-encodedfile as opposed toascii-encodedusing the following code.
# app.py import json data = {"Eleven": "Millie", "Mike": "Finn", "Will": "Noah"} with open['app.json', 'w', encoding='utf-8'] as f: f.write[json.dumps[data, ensure_ascii=False]]Output
{"Eleven": "Millie", "Mike": "Finn", "Will": "Noah"}On Windows, the encoding=utf-8 argument to open is still necessary.
We can avoid storing an encoded copy of the data in memory [the result of dumps], and to output utf8-encoded bytestrings in Python 2 and 3, use the following code.
import json, codecs with open['app.txt', 'wb'] as f: json.dump[data, codecs.getwriter['utf-8'][f], ensure_ascii=False]The codecs.getwriter[] function call redundant in Python 3 but required for Python 2.
Finally, that is it for converting Python List To JSON is over.
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