Python

It is possible to convert a Python object into a binary form to hold a byte stream called picklingThe process of converting a binary form to an object reads a stream of characters called unpickling>>> Import Pickle >>> my_list =[123,456, ' I love

#!/bin/bash/env python#-*-coding:utf-8-*-#function: Saves values greater than 66 in the first dictionary key, less than 66 is saved in the second i1 = [11,22,33,44,55,66,77,88,99,90 ]dict = { ' k1 ': [], ' K2 ': [],}for i in I1: ' Results:{' K1

If/else Three mesh operationAge =If age >: "adult"else: " Child "' adult ' if else 'child' // so write direct visual print jiTruth judgment If attr = = True : do_something ()if# Determines whether the list is empty do_something

1. ABS () Take the absolute value function1 # !/usr/bin/env python 2 # _*_ coding:utf-8 _*_ 3 # Author:taoke 4 i =5print(ABS (i))6 i = -1007Print( ABS (i))2.dict () Creating a dictionary1 Print (Dict ({"a""b" "C": 3})The 3.help () Help function

1. Prepare a file to be placed in all servers that need to be upgraded IP:ansible_failed_ip.txt2. Write a script for remote execution: update.sh[email protected] scripts]# cat update.sh #!/bin/bashtar

Python __name__ = ' __main__ ' role, what the hell?There is a phrase that sums up the meaning of this code in a classic way:"Make a script both importable and executable"It means that the script module that you write can be imported into other

Adorner with parametersFLAG =falsedef log (flag): Def wrapper (func): Def inner (*args,**Kwargs):ifFlag:print ('Call :%s'%func.__name__) ret= Func (*args,**Kwargs)returnretreturnInnerreturnWrapper@log (FLAG) #wrapper= log (FlAG)--@wrapper-qqxing =

Decorative DeviceEF Wrapper (func): #wrapper装饰器的名字 def inner (*args,**Kwargs): #print ('What you need to do before the decorated function is executed') Print ('you are calling the%s function'%func.__name__) ret= Func (*args,**Kwargs) #被装饰的函数 #print (

Objective:This tutorial is for the Python language, selenium tutorial (Call JS, dialog box processing)First, the dialog box processingMore often than not a simple warning box is encountered in the actual application, but rather a session box that

#author: Zhouyu#Dictionaries, which are often used in Python, are stored in Key:value,# It's unordered, unlike our dictionary, the dictionary is enclosed in curly braces {}A= {' Name ': ' Zhouyu ',' age ':22,' sex ': ' Male ',' QQ ': ' 1090139534 '}#

1. Simple input/output interaction.Name=input (' name ')print('hi%s. '%name)2. The user enters two numbers, calculates and outputs the sum of two digits: (try to do this with just one line of code) # user input number num1=input (" Please enter

The role of Os.urandom (n) in PythonA string of n bytes is generated and can be used as a random encryption key ~>>> index = Os.urandom (2) >>>Print Index Animals>>> index = Os.urandom (2) >>>Print Index Radon>>> index = Os.urandom (2) >>>Print

First look at the following code:>>a=np.arange (10)>>aArray ([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])>>A[-7]Array ([3, 4, 5, 6, 7, 8, 9])>>A[-7-1:-1]Array ([2, 3, 4, 5, 6, 7, 8])>>a[-7-1:-2]Array ([2, 3, 4, 5, 6, 7])>>A[-7-2:-1]Array ([1, 2, 3, 4, 5, 6, 7, 8]

One: function as return value>>> def lazy_sum (*args): .... def sum (): .... Ax=0... forNinchargs: .... Ax= ax +n . ...returnax ...returnsum ...>>> F=lazy_sum (1,2,3,4,5)>>> >>>F0x7fd1b3eccaa0>>>>f () the>>> F1=lazy_sum (1,2,3,4,5)>>>F1 ()

#!/bin/env/bashfind. -type f |grep Py|xargs grep-e ' ^from|^import ' | Awk-f "py:" {' Print $ '}|sort|uniq>res0.logsed-i ' s/from/import/g ' res0.logcat res0.log |awk-f ' import ' {' Print $ ' }|awk-f '. ' {' Print $ '}> res1.logsed-i "s/,[]*/\n/g"

Just learn python time is not long, but also know a little, see other people's reference to write a guess the number of small game, also is Yu learn in Le bar.#!/usr/bin/env python#coding =utf-8Import RandomSecret = Random.randint (1,100)Guess,tries

Read ordinary files:f = Open (tmp,r) f.read () f.close ()Write Plain Files:f = Open (tmp,w) f.write (content) F.closeRead and write binary files, change R or W to RB and WB.f = open ('11.jpb'rb') f.read () F.closeBecause the file reads and writes

Deepin system deploy the development and running environment of Python3.5, deepinpython3.5 Deploy the development and running environment of Python3.5 in the deepin System1 Overview I am a newbie. I recently want to learn python interface automated

Python-modules, Use of the python Module 1 #! /Usr/bin/env pyton3.5.4 2 #-*-conding = "UTF-8"-*-3 4 # Use sys module 5 from sys import * 6 7 8 for I in argv: 9 print (I) 10 11 print ('\ n \ nthe PythonPath is', path, '\ n') 12 13 14 # module _

Problem a [-n, Take a look at the following code: > A = np. arange (10)>Array ([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])> A [-7]Array ([3, 4, 5, 6, 7, 8, 9])> A [-7-1:-1]Array ([2, 3, 4, 5, 6, 7, 8])> A [-7-1:-2]Array ([2, 3, 4, 5, 6, 7])> A [-7-2:-1]Array (