Python Encode Decode

Reason is the light and the light of life.

Jerry Su Aug 05, 2021 Aug 05, 2021 1 mins
programming python 
import base64
import json
import requests

  • json.load：文件对象 =》 python对象

  • json.loads：json格式字符串 =》 python对象

  • json.dump：python对象 =》 文件对象

  • json.dumps：python对象 =》 json格式字符串

data_dict = {
    "fields": {"content": "Hello Wold!"},
    "config": {
        "labels": ["1", "2", "3", "4", "5", "6"],
        "sub_labels":{"4": ["1", "2"]}
    }
}

# python对象转字符串
json_str = json.dumps(data_dict, ensure_ascii=False)
json_str

'{"fields": {"content": "Hello Wold!"}, "config": {"labels": ["1", "2", "3", "4", "5", "6"], "sub_labels": {"4": ["1", "2"]}}}'

# 编码成二进制字符串
bin_str = json_str.encode('utf-8')
bin_str

b'{"fields": {"content": "Hello Wold!"}, "config": {"labels": ["1", "2", "3", "4", "5", "6"], "sub_labels": {"4": ["1", "2"]}}}'

# 编码成base64用于网络请求传输，参数必须是字节对象
base64_str = base64.b64encode(bin_str)
base64_str

b'eyJmaWVsZHMiOiB7ImNvbnRlbnQiOiAiSGVsbG8gV29sZCEifSwgImNvbmZpZyI6IHsibGFiZWxzIjogWyIxIiwgIjIiLCAiMyIsICI0IiwgIjUiLCAiNiJdLCAic3ViX2xhYmVscyI6IHsiNCI6IFsiMSIsICIyIl19fX0='

# 解码过程
bin_str_decode = base64.b64decode(base64_str)
bin_str_decode

b'{"fields": {"content": "Hello Wold!"}, "config": {"labels": ["1", "2", "3", "4", "5", "6"], "sub_labels": {"4": ["1", "2"]}}}'

json.loads(bin_str_decode)

{'fields': {'content': 'Hello Wold!'},
 'config': {'labels': ['1', '2', '3', '4', '5', '6'],
  'sub_labels': {'4': ['1', '2']}}}

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