json – JSON 编码和解码

This module implements a subset of the corresponding CPython module, as described below. For more information, refer to the original CPython documentation: json .

This modules allows to convert between Python objects and the JSON data format.


json. dump ( obj , stream , separators = None )

Serialise obj to a JSON string, writing it to the given stream .

If specified, separators should be an (item_separator, key_separator) tuple. The default is (', ', ': ') . To get the most compact JSON representation, you should specify (',', ':') to eliminate whitespace.

json. dumps ( obj , separators = None )

返回 obj represented as a JSON string.

The arguments have the same meaning as in dump .

json. load ( stream )

Parse the given stream , interpreting it as a JSON string and deserialising the data to a Python object. The resulting object is returned.

Parsing continues until end-of-file is encountered. A ValueError is raised if the data in stream is not correctly formed.

json. loads ( str )

Parse the JSON str and return an object. Raises ValueError if the string is not correctly formed.