Python-json and Pickle

This is a two module for serialization

JSON: Used to convert between string and Python data types

Pickle: Converting 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

Pickle instances:

  1:import Pickle

  2:data = {' K1 ': 123, ' K2 ': ' Hello '}

  3: # Pickle.dumps converts data to a string that can be recognized only by Python speech in a special form

  4:P_STR = pickle.dumps (data)

  5:print P_str

  6: "'

  7: Print the result:

  8: (dp0

  9:s ' K2 '

10:p1

11:s ' Hello '

12:p2

13:ss ' K1 '

14:p3

15:i123

16:s.

17: "'

#: # Pickle.dump converts data into a string that is known only by Python speech in a special form and writes to a file

19:with open (' e:/python/tmp/result.pk ', ' W ') as FP:

:     pickle.dump (DATA,FP)

JSON instance

  1:import JSON

  2:data = {' K1 ': 123, ' K2 ': ' Hello '}

  3: # Json.dumps converts data to a string that is recognized by all programming languages in a special form

  4:J_STR = json.dumps (data)

  5:print J_str

  6: # Print Result: {"K2": "Hello", "K1": 123}

  7: # Json.dump converts data into a string that is recognized by all languages in a special form and writes to a file

  8:with open (' e:/python/tmp/result.pk ', ' W ') as JP:

  9:     json.dump (DATA,JP)

Configparser

  1: #!/usr/bin/env python

  2: #-*-Coding:utf-8-*-

  3: # to operate on a specific configuration, the name of the current module is changed to Configparser in the Python 3.x version.

  4:import Configparser

  5:config = Configparser.configparser ()

  6:config.read (' Goods.txt ')

  8: # Get the name of the module

  9:secs = Config.sections ()

10:print secs

11: # Result: [' section1 ', ' Section2 ']

12: # Gets the key value of the specified module

13:options = config.options (' Section1 ')

14:print Options

15: # Result: [' K1 ', ' K2 ']

16: # Gets the items under the specified module

17:item_list = Config.items (' Section1 ')

18:print item_list

19: # Result: [(' K1 ', ' v1 '), (' K2 ', ' V2 ')]

20: # Gets the value of the key under the specified module

21:val = Config.get (' Section1 ', ' K2 ')

22:print Val

Python-json and Pickle