Serializing JSON data in Python
Serialization is the process of encoding the from naive datat type to JSON format. The Python module json converts a Python dictionary object into JSON object, and list and tuple are converted into JSON array, and int and float converted as JSON number, None converted as JSON null.
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Let’s take a look at how we serialize Python data to JSON format with these methods:
- Dump().
- Dumps().
json.dump()
json.dump() method can be used for writing to JSON file. Write data to a file-like object in json format.
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.
Below is the implementation:
Converting python object and writing into json file.
Python3
# import moduleimport json # Data to be writtendata = { "user": { "name": "satyam kumar", "age": 21, "Place": "Patna", "Blood group": "O+" }} # Serializing json and # Writing json filewith open( "datafile.json" , "w" ) as write: json.dump( data , write ) |
Output:
data_file.json
json.dumps()
json.dumps() method can convert a Python object into a JSON string.
Syntax: json.dumps(dict)
Parameters:
- dictionary – name of dictionary which should be converted to JSON object.
Below is the implementation:
Converting python object into json string.
Python3
# import moduleimport json # Data to be written data = { "user": { "name": "satyam kumar", "age": 21, "Place": "Patna", "Blood group": "O+" }} # Serializing jsonres = json.dumps( data )print( res ) |
Output:
