Python - What Is json.JSONEncoder Class

What Is json.JSONEncoder Class

Q

What Is json.JSONEncoder Class?

✍: FYIcenter.com

A

json.JSONEncoder class is the underlying class that supports json.dumps() functions.

The following Python example shows you how to use json.JSONEncoder class to perform the same JSON encoding job as json.dumps function:

>>> import json
>>> l = ['foo', {'bar': ('baz', None, 1.0, {"c": 0, "b": 0, "a": 0})}]

>>> # Encoding with json.dumps() function
>>> j = json.dumps(l, indent=None, separators=(',', ':'), sort_keys=True)
>>> print(j)
["foo",{"bar":["baz",null,1.0,{"a":0,"b":0,"c":0}]}]

>>> # Encoding with json.JSONEncoder class
>>> encoder = json.JSONEncoder(indent=None, separators=(',', ':'), 
   sort_keys=True)
>>> j = encoder.encode(l)
>>> print(j)
["foo",{"bar":["baz",null,1.0,{"a":0,"b":0,"c":0}]}]

⇒ Extending json.JSONEncoder Class

⇐ Dumping JSON Output to File

⇑ 'json' Module - JSON Encoder and Decoder

⇑⇑ Python Tutorials

2018-10-08, 812👍, 0💬

json.loads() - Loading JSON into Object
How to load (or decode, deserialize) a JSON string into a Python object using json.loads()? The json.loads() function allows you to load (or decode, deserialize) JSON strings (str, bytes or bytearray types) into Pythong objects: json.loads(s, *, encoding=None, cls=None, object_hook=None, parse_float... 2018-10-08, 852👍, 0💬

What Is json.JSONEncoder Class
What Is json.JSONEncoder Class? json.JSONEncoder class is the underlying class that supports json.dumps() functions. The following Python example shows you how to use json.JSONEncoder class to perform the same JSON encoding job as json.dumps function: >>> import json >&am... 2018-10-08, 813👍, 0💬

Dumping JSON Output to File
How to dump (or encode, serialize) a Python object into file or an output stream as a JSON string using json.dump()? json.dump(o,fp,...) function performs the same job as json.dumps(o,...) except that it directs the JSON string to the output stream of a given file pointer. Here is a Python example t... 2018-10-08, 567👍, 0💬

Generating JSON Strings in Pretty Format
How to generate JSON strings in pretty format using json.dumps()? You can control the JSON output string format with "indent", "separators" and "sort_keys" arguments of the json.dumps() function: Here is a Python example that generates a pretty formatted JSON string with property keys sorted: &g... 2018-10-08, 530👍, 0💬

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