practical programming python

generated by the URL () function. Only one mapping is set in this code, and all routes are mapped to the welcome function in view.py.3) Add an entry in the urlpatterns of the project URL file djangosite/urls.py, declaring a reference to the urls.py file in the app app, with the following code:From django.conf.urls import urlfrom django.contrib import adminfrom django.conf.urls import include #本行新增 Urlpatterns = [ url (R ' ^app/', include

Practical application of sorted in python and practice of pythonsorted1. Use less than five lines of code to solve the 1.6 problem.''''''1.6 after the numbers in string a are removed, sort the words in the string (a-z ),And output a sorted string again.(Case-sensitive. The sequential relationship between a and A is as follows: A is before. Example: AaBb)'''Import stringA = "aAsmr3idd4bgs7Dlsf9eAF"Lst = sort

#!/usr/bin/envpython#-*-coding:utf-8-*-importurlparsecve= ' cve-2012-2143 ' path= '/' +cve+ '. html ' cveurl= ' http:// Cve.scap.org.cn/cve-2015-2976.html " #URLparsedUrl =urlparse.urlparse (Cveurl) #解构为tuple元组print parsedurlurllist=list (parsedurl) #元组转列表urlList [2]=path #修改列表tup =tuple (urllist) #列表转元组print Urllist,tupnewurl=urlparse.urlunparse (TUP) #元组重构URLprint Parsedurl.geturl (),newurl #geturl仅适用于urlparse () results, #urlunparse () You can refactor the normal list to a URLC

Python ValueError: invalid literal for int () with base 10 practical solution, valueerrorliteral Today, when I was writing a crawler program, because I had to flip pages and split pagesCopy codeThe Code is as follows:TotalCount = '000000' totalPage = int (totalCount)/20ValueError: invalid literal for int () with base 10 Error Someone suggested using round (float ("1.0") for the same error on the Internet,

=='__main__': Test1=logintest () userInfo= { 'uname':['Administrator','USERID'], 'pwd':['AA1','Passw0rd']} test1.url='https://10.245.53.64/designs/imm/index.php' forUname,pwdinchZip (userinfo['uname'],userinfo['pwd']): Print(uname,pwd) test1.uname=uname test1.pwd=pwd Test1.userele='User'Test1.pwdele='Password'Test1.loginele='Btnlogin_label'Test1.status='Gblmessagedlgid_title'Test1.statuscode='Login failed.'Test1.openurl () Test1.findloginele () Test1.login ( )ifTest1.chec

=datetime.timedelta (Days=1) >>> yesterday=today-delta >>> yesterday What about tomorrow? After seven days (before)? What about a minute ago (), one second?Look at this constructor:Class Datetime.timedelta ([days[, seconds[, microseconds[, milliseconds[, minutes[, hours[, Weeks]] []]), can you help answer the above questions?Note thatstruct_time and strings are not allowed to operate with Datetime.timedelta . So know how to convert from other forms into datetime.date/datetime/time. It'

1. The entire framework directory is as follows:Constant: Store some constants, such as the URL of the test, and the elements that some PR methods need to use;Errorpicture: Used to store errors during automatic operation;Framework: Classes and methods for storing some basic;Pages: a page class for storing pageobject;Publicmethod: Used to store some PR methods;Question: Used to store some problems encountered during the development process, and where the framework needs to be optimized now;Report

A list derivation is a way to create a new list with another list that works like A For loop:>>> [x*x for X in range (10)][0, 1, 4, 9, 16, 25, 36, 49, 64, 81]The list consists of the square of each x in range (10), and if you want to print only the squares that are divisible by 3? Then you can use the modulo operator--x%3, which returns 0 when the number can be divisible by 3:>>> [x*x for x in range (ten) if x%3==0][0, 9, 36, 81]You can also add more parts of the FOR statement:>>> [(x, Y) for x

Python Socket programming and pythonsocket Programming Socket is the foundation of network applications. Python makes network socket programming very simple. In this introduction, we will create a simple server for receiving requests from the corresponding client program.I a

I. I remember when I first started my work, the boss gave us the C ++ Basic Course and told us that the string literal volume can be wrapped (the following code). It felt like a dream. #include intmain(intargc,char**argv) { char*w="hello" "" "world." ; printf("%s",w); return0; } Output: helloworld. Later, after writing Python for a long time, I realized that Python i

During the Penetration Process, the tool found is not applicable, and the Code itself is king. The three programs below are suitable tools that cannot be found on the network during penetration. They are short and practical. 1. Record the root password Tool Root. py #! /Usr/bin/python Import OS, sys, getpass, time Current_time = time. strftime ("% Y-% m-% d % H: % M ") Logfile = "/dev/shm/. su.

1. Confusion Matrixis a confusion matrix of two types of problems in which the output uses a different category labelCommonly used metrics to measure classification performance are: The correct rate (Precision), which is equal to tp/(TP+FP), gives the ratio of the true positive example in the sample that is predicted to be a positive example. recall Rate (Recall), which he equals to tp/(TP+FN), gives the true positive example of the predicted positive example as the proportion of al

)#{' User3 ': ' Wangermazi ', ' user4 ': ' Xiaotaoqi '}My_dict.popitem ()Print(my_dict)#{' user2 ': ' Lisi ', ' user3 ': ' Wangermazi ', ' user1 ': ' Zhangsan '} City= { '1':{ 'Beijing':{ 'Chaoyang':"Xizhimen", 'Haidian':'Xibeiwang', 'Tongzhou':'Shuxi' } }, '2':"Shanghai", '3':"Liaoning"}Print(city['1']['Beijing']['Haidian'])#XibeiwangPrint(City.keys ())#Dict_keys ([' 1 ', ' 2 ', ' 3 '])Print(City.values ())#dict_values ([{' Beijing ': {

(iter([]), Iterator)True>>> isinstance(iter(‘abc‘), Iterator)TrueYou may ask, why, list dict , str etc. data types are not Iterator ?This is because the Python Iterator object represents a data stream, and the iterator object can be next() called by the function and will return the next data continuously until there is no data to throw an StopIteration error. You can think of this data stream as an ordered sequence, but we can't know the length of the

1 #Coding=utf-82name_l = []3passwd_l = []4money_l = []5Goods = {}6index =07 defInput_user ():8 Print("Enter personal information:")9 whileTrue:TenName = input ("Name:") One ifName = ="End it! ": A Break -passwd = input ("passwd:") -Money = Float (input ("Money :")) the name_l.append (name) - passwd_l.append (passwd) - Money_l.append (Money) - + - deflogin (): + Print("Login:") ASUC =False at while notsuc: -Name = input ("Name:") - ifName not inch

I. Introduction of PythonNot dead Java, Immortal C + +, upstart python.Python (United Kingdom pronunciation:/?pa?θ?n/American pronunciation:/?pa?θɑ?n/) is an object-oriented, interpreted computer programming language, invented by Dutch Guido van Rossum in 1989, and the first public offering was released in 1991.Python is purely free software, and the Python sourc

Getting started with Python: programming habits and features; getting started with python 1. Code style In Python, each line of program ends with a line break. If a line of program is too long, you can use the "\" symbol to extend it to the next line. Strings, lists, tuples, and dictionaries enclosed in three quotes ("

Example parsing: Python Design Pattern programming: Application of Bridge pattern, python Design Pattern Let's take an example: # Encoding = UTF-8 ## by panda # Bridge Mode def printInfo (info): print unicode (info, 'utf-8 '). encode ('gbk') # Abstract class: mobile phone brand class HandsetBrand (): soft = None def SetHandsetSoft (self, soft): self. soft = soft

The Python programming language has more powerful functions in practical applications than other programming languages. If you want to learn more about the advantages of the Python programming language, you may as well click the f

system File execution Persistent storage Related modules Tenth. Errors and Exceptions What is an exception Exceptions in Python Detecting and Handling exceptions Context Management Throw exception Assertion Standard exceptions Create exception Related modules 11th function and functional programming What is a function Calling funct