How To Convert Python Dictionary To JSON?

0 0 1 minute read

JSON stands for JavaScript Object Notation. It means that a script (executable) file which is made of text in a programming language, is used to store and transfer the data. Python supports JSON through a built-in package called json. To use this feature, we import the JSON package in Python script. The text in JSON is done through quoted-string which contains a value in key-value mapping within { }. It is similar to the dictionary in Python.
Note: For more information, refer to Read, Write and Parse JSON using Python

Function Used:

json.dumps()
json.dump()

Syntax: json.dumps(dict, indent)
Parameters:

dictionary – name of dictionary which should be converted to JSON object.

indent – defines the number of units for indentation

Syntax: json.dump(dict, file_pointer)
Parameters:

dictionary – name of dictionary which should be converted to JSON object.

file pointer – pointer of the file opened in write or append mode.

Example 1:

Python3

import json 
      
# Data to be written 
dictionary ={ 
  "id": "04", 
  "name": "sunil", 
  "department": "HR"
} 
      
# Serializing json  
json_object = json.dumps(dictionary, indent = 4) 
print(json_object)

Output

{
    "id": "04",
    "name": "sunil",
    "department": "HR"
}

Output:

{
    "department": "HR",
    "id": "04",
    "name": "sunil"
}

Example 2:

Python3

import json
    
# Data to be written
dictionary ={
    "name" : "sathiyajith",
    "rollno" : 56,
    "cgpa" : 8.6,
    "phonenumber" : "9976770500"
}
    
with open("sample.json", "w") as outfile:
    json.dump(dictionary, outfile)