Python

Support for multiple address families in PythonAmong them, the most common of the first Berkeley sockets is Af_unix,The sockets in Linux are Af_netlink, Another feature for Linux (added in Python 2.6 ) is the support for transparent interprocess

# coding=utf-8 "" "Hashlib Module" "" Import Unittestimport hashlibimport chardetclass testhashlib (unittest. TestCase): def test_md5 (self): "" " MD5 Encoding" "" str1 = "Chinese str" MD5 = HASHLIB.MD5 () md5.update (

Https://docs.python.org/2/howto/unicode.htmlA Unicode string is a sequence of code points, which was numbers from 0 to 0X10FFFF. This sequence needs to is represented as a set of bytes (meaning, values from 0–255) in memory. The rules for

1. Implement the message sending function2. Basic useimport smtplib     # #导入模块import  stringHOST =  "smtp.163.com"      # #定义远程smtp主机SUBJECT  =  " test"          # #定义发送主题TO  =  "[email protected]"         # #定义接收主机FROM  =  "[email protected]"    #

Described earlier, the use of forms to fill in account numbers, user name of the way to simulate the login know. If the login is successful, you can then log in with the cookie without repeating the previous steps.ImportRequestsImportHttp.cookiejar

1. Modules that function to process IP2.Output all IPs in a network segment650) this.width=650; "src=" Https://s2.51cto.com/wyfs02/M02/A6/DB/wKioL1ncnubSmqQhAAAjIRctZdY780.png "title=" Screenshot from 2017-10-09 17-01-40.png "alt="

The Python list built-in sort () method is used for sorting, or it can use the Python built-in global sorted () method to generate a new sequence for an iterative sequence orderingOne, the simplest sort of1. Sort by using sortMy_list = [3, 5, 1, 4, 2

First, install the XLRD moduleDownload the HTTP://PYPI.PYTHON.ORG/PYPI/XLRD module installation to the Python website, provided the Python environment is already installed.Second, the use of the introduction1. Import ModuleImport xlrd2. Open Excel

Stay moreOne, Linux user rightsDrwxr-xr-xD: CatalogueRWX: Permissions for the current userR-x: Permissions for the same user group--x: External user access rightsIi. Opening of the fileOpen (name, mode, BUF): Name file path, mode file open mode,

1. InstallationPip Install Psutil2. Basic information of the collection system, CPU, memory, disk, networkCpu650) this.width=650; "src=" Https://s3.51cto.com/wyfs02/M00/08/1F/wKiom1nbkvPSU3KgAAB6wCNCbgI901.png "title=" Screenshot from 2017-10-09 16-1

#数据源: http://pan.baidu.com/s/1hs5Wn0w#要求: Matlibplot Simple Application#1. Chart the price trend of the day-line level from June 2017 to August based on the data.#2. Overlay MA5, MA10, MA20 into the diagramImportPandas as PDImportNumPy as

[This article is from the Sky Cloud-owned blog Park]Title: There is an array that asks him for the maximum (longest) continuous interval (the number is a continuous interval).My solution is as follows:classFinder (object):" "determine whether two

Os.walk (Top,topdown = True,onerror = None,followlinks = False)Parameters Top -Every folder in the root directory (including itself), resulting in 3-tuple (Dirpath, dirnames, filenames) "Folder path, folder name, file name". Topdown

First, higher order function1. Variables can point to functionsFor example, Python's built-in absolute value function abs ():f=ABSprint(f (-10))The output is 10.2, function name is also variableAny function name is a variable, and if it is assigned,

Nothing to do with Python. To brush the PAT again, the output encountered a problem like this:Topic 1002 topic requires the output of the sum of each of the numbers of N in a row, there are 1 spaces between the phonetic numerals, but there is no

#coding =utf-8Import Osdef Join (ARR,JOIN_FALG): Res="" forAinchArr:res+ + +Join_falgreturnresdef get_file_parats (file): Path_arr= File.split ("/") Last_index= File.rindex ("/") Parents_path=File[:last_index]returnparents_path# Creating folders

Python uses "#" for a single-line comment without a multiline comment.However, in compiler pycharm, you can annotate multiple lines of code in the following ways:1, "Select a code to comment-->ctrl+/" to annotate a paragraph (multi-line) code.2.

#!/usr/bin/python#Coding:utf8ImportOSImportChardetImportSYSImportTracebackImportLogging#traversing FilesdefGet_all_file_path (Path, All_file_path):""":p Aram Path: The specified scan path:p aram All_file_path: Save the path to each file: return:"""

One, log levelThe log is divided into 5 levels, from low to High, respectively: DEBUG INFO WARNING ERROR CRITICAL.DEBUG: Detailed information, usually appearing only on diagnostic issuesINFO: Make sure everything works as expectedWARNING: A sign

Python-implement a post bar image crawler, Today, I am free to go home and write a post bar image download program. The tool uses PyCharm. This tool is very practical. I started to use Eclipse, but it is not practical to use the class library or