Python JSON & Pickle Module

Two modules for serialization

• JSON, used to convert between string and Python data types
• Pickle for conversion between Python-specific types and Python data types

The JSON module provides four functions: dumps, dump, loads, load

The Pickle module provides four functions: dumps, dump, loads, load

"""
Python 3 JSON module uses
"""

Import Jsondata = {"    Beijing": {"        Chaoyang": ["Three Li Tun", "Wangjing", "Guomao"],        "Haidian": ["Five Crossings", "College Road", "after Factory village"],        "Dongcheng District": ["Dongzhimen", "chongwenmen "," Wangfujing "],    },    " Shanghai City ": {        " Jingan ": [],        " Huangpu ": [],        " Hongkou ": [],    }}

1, Json.dumps dict-->strting

s_dumps = json.dumps (data, Sort_keys=true, indent=4, ensure_ascii=false) print (Type (s_dumps)) print (s_dumps) Output:<' str '>{"    Shanghai City": {        "Hongkou": [],        "Jingan": [],        "Huangpu": []    },    "Beijing": {        "Dongcheng": [            "Dongzhimen",            "Chongwenmen",            "Wangfujing"        ],        "Chaoyang": [            " Sanlitun, "            wangjing",            "Guomao", "        Haidian": [            "Five Crossings",            "College Road",            "rear Factory village"        ]    }}

2, Json.loads string-->dict

r_loads = json.loads (s_dumps) print (Type (r_loads)) print (r_loads) output: <   ' dict '>{' Shanghai ': {' Hongkou ': [], ' Jingan ': [], ' Huangpu ': []}, ' Beijing ': {' Dongcheng District ': [' dongzhimen ', ' chongwenmen ', ' wangfujing '], ' Chaoyang District ': [' Three Li Tun ', ' wangjing ', ' Guomao '], ' Haidian ': [' Five crossing ', ' College Road ', ' Rear Factory village '}}

3. json.dump Write file

With open ("Data.json", "W", encoding= "UTF-8") as F_dump:    s_dump = json.dump (data, F_dump, indent=4, ensure_ascii= False)

4, json.load from the file read

With open ("Data.json", "R", encoding= "Utf-8") as F_load:    r_load = json.load (f_load) print (Type (r_load)) print (R _load) Output:<' dict '>'Beijing ': {' Chaoyang District ': [' Three Li Tun ', ' wangjing ', ' Guomao '], ' Haidian District ': [' Five crossing ', ' College Road ', ' post Factory Village '], ' Dongcheng District ': [' dongzhimen ', ' chongwenmen ', ' Wangfujing ']}, ' Shanghai ': {' Jingan ': [], ' Huangpu ': [], ' Hongkou ': []}}

Python JSON & Pickle Module