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How To Convert Python Dictionary To JSON?
  • Last Updated : 29 Dec, 2020

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:

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

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Output:

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

Example 2:

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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)

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Output:

python-json-write-to-file-1

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