python programming youtube

For example, the use of thread locks in Python programming and python Programming Lock Python's built-in data structures, such as lists and dictionaries, are thread-safe. However, simple data types, such as integers and floating-point numbers, are not thread-safe. You need to perform operations on these simple data typ

Python network programming-socket, python Network Programming1. TCP/IP To understand socket, you must first familiarize yourself with the TCP/IP Protocol family, namely, the Transport Control Protocol/internetprotocol, defines the criteria for how a host connects to the Internet and how data is transmitted between them. Literally, TCP/IP is the combination of TCP

Php Chinese network (www.php.cn) provides the most comprehensive basic tutorial on programming technology, introducing HTML, CSS, Javascript, Python, Java, Ruby, C, PHP, basic knowledge of MySQL and other programming languages. At the same time, this site also provides a large number of online instances, through which you can better learn

): "Timing function" start_time = time. clock () result = func end_time = time. clock () return (result, end_time-start_time) def factorial_iteration (n): "Use cyclic calculation factorial" result = 1 for eachItem in range (n + 1) [1:]: result = result * eachItem return resultdef factorial_lambda (n): "calculate a factorial using lambda" return reduce (lambda x, y: x * y), range (n + 1) [1:]) def factorial_recursion (n): "use recursion to calculate factorial" if n = 0 or n = 1: return 1 else: re

Python network programming, python network programming BasicsUnderstanding Socket A socket is also called a "socket". It is used to describe the IP address and port. It is a communication chain handle. An application usually sends a request to or responds to a network request through "socket. Socket originated from Uni

the exit string, the connection is closed directly.To test this server program, we also need to write a client program:Note that the client program runs out, and the server program will run forever, you must press CTRL + C to exit the program.SummarySocket programming with the TCP protocol is very simple in Python, for the client, to actively connect to the server's IP and the specified port, for the serve

With the advent of new programming languages, it is difficult to choose a programming language that is right for you. Although Python has existed for many years, it has become more popular in recent years, mainly because of its simpler and more flexible nature. Python is a common, object-oriented, interpretive, and adv

Python programming method for detecting database SA users, python programming Database sa This article describes a small program written in Python, which is used for links with injection points to check whether the current database user is sa. The detailed code is as follows

Python multi-thread programming (7): use Condition for complex synchronization and python multi-thread programming Currently, we have used Lock to perform mutex access to public resources. We also discussed that the same thread can use RLock to re-import the Lock, however, we only deal with some simple synchronization

('Please input the minutes :...'))Hours = minutes/60Mins = minutes-hours * 60Print "% I: % I" % (hours, mins) 6-10.String. Write a function to return a string similar to the input string, which requires case-sensitivity inversion. For example, if "Mr. Ed" is input, "mR. eD" should be returned as the output.[Answer]The Code is as follows:Input = raw_input ('Please input a string :...')Output =''For I in input:If I = I. upper ():Output = output + I. lower ()Else:Output = output + I. upper ()Print

Python core programming version 2, 36th page, Chapter 2 exercisesThe answer here is not from official resources, but from my own exercises, which may be incorrect. 2.21 exercise 2-1.Variables, print, and string formatting operators. Start the interactive interpreter, assign values to some variables (string, value, etc.), and display their values by entering the variable name. Use the print statement to do t

tutorial, which, like everything in this article, is friendly to beginners. If you're having problems, it's a good idea to search for them with Google.My favorite learnstreet is a lot of hints/explanations behind every link, in the console where you write the code.The New BostonIf you prefer video learning, I'm not sure if there's a more complete Python series video tutorial than the Nes Boston, and many other pr