python programming third edition

Database Application Programmer interface (DB-API) relational database (RDBMSS) Object-Relationship Manager (ORMs) Relationship Module Practice 22nd Chapter Extending Python Introduction/Motivation Extending Python Creating application code Use a template to wrap your code Compile Import and test Reference count Threads and Gil Related Topics

Download address: Network disk download How do you use Python when you have a basic knowledge of python? Python Programming (Fourth Edition) provides in-depth tutorials on the main areas of application of the language, such as System Management, GUI and web, and explo

, consider using Streamrequesthandler or Datagramrequesthandler streamrequesthandler/Datagramrequesthandler An implementation of the request processing class for the TCP/UDP server Create a SOCKETSERVERTCP server: in your code, first import our server class, and then define the host constants as before. After the host constant is our request processor class, then the boot code.1 #!/usr/bin/env python2 3 fromSocketserverImport(TCPServer as TCP, Streamrequesthandler

Beginner Python This is a guide to python developmentCovers the core features of the recently released Pyttlon version, not just the syntaxLearn more advanced content such as regular expressions, networking, multithreading, graphical user interfaces, WEB/CGL, and Python extensionsincludes several new chapters on databases, Web clients, java/jytt30n, Microsoft Off

Chapter One: Basic knowledge1. Double slash: The operator that implements the divide>>>1//20Even if it is a floating-point number, the slash will perform the divide>>>1.0//2.00.02. Power (exponentiation) operator: Double star>>>2**38Tip: You can use the function POW instead of the operator, pow (2,3)3.16 Binary and octalHex: Front plus 0x, first is number 0>>>0xaf175Octal: Add 0o to Python in version 3.0, the first number is 0, the second is the lette

import and test 22.2.5 reference count 22.2.6 thread and Global Interpreter lock (GIL) 22.3 Related Topics 22.4 Practice Chapter 23rd　Other topics 23.1 Web services 23.2 using WIN32 COM to operate Microsoft Office23.2.1 Client COM programming 23.2.2 Microsoft Excel23.2.3 Microsoft Word 1th python core 23.2.4　Microsoft PowerPoint23.2.5 Microsoft Outlook23.2.6 Medium Size Example 23.3 write

database programming21.1 Introduction21.1.1 Persistent Storage21.1.2 Basic database operations and SQL language21.1.3 database and Python21.2 Python Database Application Programmer interface (DB-API)21.2.1 Module Properties21.2.2 Connection Object21.2.3 Cursor Objects21.2.4 Type objects and constructors21.2.5 relational database21.2.6 database and Python: interface program21.2.7 example of using a database

functional programming refers to this highly abstract programming paradigm.The 1.map () function receives two parameters, one is a function, the other is a sequence, and the map functions the incoming function to each element of the sequence sequentially and returns the result as a new list.2.reduce functions a function in a sequence [X1, x2, x3 ...] , the function must receive two parameters, and reduce w

class file interface to a string object Tarfile Read and write TAR archive files, support compressed files Tempfile Create a temporary file (name) Uu Encoding and decoding of formats ZipFile Tools for reading ZIP archive files The Fileinput module iterates through a set of input files, reading one line of their contents each time, similar to the "Core tip: Use the tilde (~) of Os.path.expanduser () to extendAlt

: Network Disk DownloadThis book presents a Python language teaching idea that aims to understand and apply computational ecology, not only the Python language syntax, but also the 14 Python libraries from data comprehension to image processing, and shows a new language learning path for the beginners of Python languag

: Network Disk DownloadContent Profile ...Python Programming (Photocopy) (4th edition) (set of 2 volumes) includes: Python QuickStart: Building A simple example of data representation, object-oriented programming, object persistence, GUI, and Web Foundation; system

has been a programmer for many years, the first time to open a blog, welcome to fellow critics, comments.Recently obsessed with Python, after reading the Python Basics tutorial, and holding a "Python Core programming (third edition)" began to chew.After reading the first cha

catgetlatestftp.py#!/usr/bin/pythonimportftplibimportosimportsockethost= ' Ftp.mozilla.org ' dirn= ' pub/mozilla.org/webtools ' file= ' bugzilla-latest.tar.gz ' def Main (): try:f=ftplib. FTP (HOST) except (socket.error,socket.gaierror) ase: print ' error:cannotreach '%s ' %HOST returnprint ' ***connectedto host '%s ' %HOSTtry: F.login (' web2 ', ' she3t6net6hv3 ') exceptftplib.error_perm: print ' error:cannotloginanonymously ' f.quit() returnprint ' ***logged inas "Anonymous" try: F.CWD (Dirn)

Add a multi-process solution to the service side1. Server-side code is as follows:#!/usr/bin/python#!coding:utf-8ImportOs,sys,time fromSocketImport*defhandleclient (conn):Print '[INFO] handleclient is: {0}'. Format (Os.getpid ()) whileTrue:data= CONN.RECV (1024) if notData:Print '[INFO] handleclient client is stoped .'; Break Print '[INFO] handleclient recive This----{0}'. Format (Data.encode ()) Reply='[INFO] handleclient the informati

4-1python objectsAll Python objects has three Attributes:type,id,and value.All was readonly with a possible expection of the value (which can being changed only if the object is mutable).4-5str () and repr ()Repr () is a built-in function while STR () was a built-in function, changed to a factory function Inpython2.2.they would Both returns a string representation of an OBJECT;HOWEVER,STR () returns a printable string representation while repr () ret

Recently bought online this Python core programming (second edition) Chinese version, just read a few chapters, on the machine practice a few procedures, found that printing problems, do not know what the reason. Online search, found that other netizens also found similar problems. Here I have encountered the problem of the program posted to record their own lear

the dictionary, you can use the dictionary key you are familiar with in brackets to get: Ex dict2[' name ';The best way to check if there is a key in a dictionary is the in or not in operator.There are several ways to make changes to a dictionary:(1) Add a new data item or new element (that is, a key-value pair);(2) Modification of an existing data item;(3) or delete an existing data item.1>>> dict2['name'] ='Venus' #Update an existing entry2>>> dict2['Port'] = 6969#Update an existing entry3>>>

Add multi-threaded solutions to the server1. The service-side code is as follows:This version does not really play the role of multithreading, the main reason is T.join (), the future version will improve the problem * * *#!/usr/bin/python#!coding:utf-8ImportOs,sys,time fromSocketImport*ImportThreadingdefhandleclient (conn):Print '[INFO] handleclient is: {0}'. Format (Os.getpid ()) whileTrue:data= CONN.RECV (1024) if notData:Print '[INFO] hand

--version 1 Only completes communication between the server/client.1. Server-side code:#!/usr/bin/python#!coding:utf-8 fromSocketImport*ImportOs,sysif __name__=="__main__": #Defining Socketshostip='127.0.0.1'Port=2048sock=socket (Af_inet,sock_stream) Sock.bind ((Hostip,port)) Sock.listen (5) Print '[INFO] start listening {0}:{1}'. Format (hostip,port) whileTrue:#accept a connection from a clientCONN,ADDR =sock.accept ()Print '[INFO] have recived