Converts a dictionary into its JSON string in Python _python

#这是Python中的一个字典

DIC = {' str ': ' is a string ', ' list ': [1, 2, ' A ', ' B '], ' sub_dic ': {' sub_str ': ' The ' is Sub Str ', ' sub_list ': [1, 2, 3]}, ' End ': ' End '} 

This is a JSON object in JavaScript

Json_obj = {' str ': ' is a string ', ' arr ': [1, 2, ' A ', ' B '], ' sub_obj ': {' sub_str ': ' The ' is Sub Str ', ' sub_list ': [1 , 2, 3]}, ' End ': ' End '}

In fact, JSON is the string representation of a Python dictionary, but a dictionary as a complex object cannot be converted directly into a string that defines its code (it cannot be passed so it needs to be converted to a string). Python has a library called Simplejson to facilitate the generation and parsing of JSON, which is already contained in Python2.6, and is called JSON, which consists of four methods: Dump and dumps (generate JSON from Python), Load and loads (parsing json into Python data types) The only difference between dump and dumps is that dump generates a class file object, dumps generates strings, and similarly load and loads parse the class file object and the string format for JSON

Import json dic = {' str ': ' This is a string ', ' list ': [1, 2, ' A ', ' B '], ' sub_dic ': {' sub_str ': ' The ' is Sub Str ', ' sub_l  Ist ': [1, 2, 3]}, ' End ': ' End '} json.dumps (DIC) #output: # ' {' sub_dic ': {' sub_str ': ' The ' is Sub Str ', ' sub_list ': [1, 2, 3]}, "End": "End", "List": [1, 2, "a", "B"], "str": "It is a string"} "