python turtle tutorial

definition, and then replace the return part of the app function. Now the code looks like this import saedef hello(): return 'hello my python'def app(environ, start_response): status = '200 OK' response_headers = [('Content-type', 'text/html; charset=utf-8')] start_response(status, response_headers) return hello() application = sae.create_wsgi_app(app) Save and access the application. If you see "Hello my python", the original cont

Python JSON In this section we will show you how to encode and decode JSON objects using the Python language. Environment configuration Before using Python to encode or decode JSON data, we need to install the JSON module first. In this tutorial we will download Demjson and install: $tar XVFZ demjson-1.6.tar.gz$cd demj

Compile and install MySQL in Linux-Python tutorial, linuxmysql-python 1. Download mysql-python Address: http://sourceforge.net/projects/mysql-python/ 2. Install mysql-pythonCopy codeThe Code is as follows:# Tar-zxvf MySQL-python-1

Tutorial on using third-party modules in Python, python third-party In Python, third-party modules are installed through the setuptools tool. Python has two package management tools that encapsulate setuptools: easy_install and pip. Pip is currently officially recommended. I

mathematics, games, security and other fields, but also often embedded in the algorithm to improve the efficiency of the algorithm and improve the security of the program.Python contains the following common random number functions:Choice (seq) #从序列的元素中随机挑选一个元素, such as Random.choice (range), randomly selects an integer from 0 to 9. Randrange ([Start,] stop [, step]) #从指定范围内, gets a random number in the collection incremented by the specified cardinality, and the base default value is 1r

Python modifier getting started tutorial (nine steps), python nine steps Decorator is an advanced Python syntax. The decorator Can process a function, method, or class. In Python, we have multiple methods to process functions and classes. For example, in the

must be able to recognize the file as a UTF-8 and must use a font that supports all characters in the file. You can also specify a different encoding for the source file. In #! Add a special comment line after the line to define the source file encoding: # -*- coding: encoding -*- With this Declaration, all content in the source file is treated as new encoding, and the possible encoding list is found in the python library. For example, the editor you

used in the future when we write simple Python code.Python interpreterPython source code files have A. py extension, and a Python interpreter is required to run the Python source Code. When you install python, the CPython interpreter is installed Automatically. Apart from cpython, there are several other interpreters,

Basic python tutorials-Introduction to user-defined functions, basic python tutorial Functions The most important purpose of a function is to make it easier for us to reuse the same program. Some operations are affiliated to a function. When you want to implement the same operation in the future, you only need to call the function name, without repeating all the

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At the beginning of this tutorial, I have introduced the concept of a function: Forever powerful function. the reason why I mentioned the function at that time is that I think it is much more important than the average function. Here, we need to review the function. Second, we need to have a deeper understanding of the function on the basis of our learning. Basic function structure Basic structure of functions in

equivalent to a read-only list.The following are tuples that are not valid because tuples are not allowed to be updated. And the list is allowed to be updated:#!/usr/bin/python#-*-coding:utf-8-*-tuple= ('Runoob',786,2.23,'John',70.2) List= ['Runoob',786,2.23,'John',70.2]tuple[2] = +# Illegal application of list[in tuples2] = +# is a legitimate application in the listPython DictionaryThe Dictionary (dictionary) is the most flexible built-in data struc

assigned the value of ' 12 ' when the return value of the ID is the same, but X or Y is assigned to 12, 13, ' 12 ' The return value of the This shows that Python allocates memory space to the right of the equals sign, and can point to the data by different variables. You can also use different variables to point to the same memory space to get the same value.>>> x = 12>>> y = 13>>> x = y>>> x13>>> ID (x) 10416504>>> ID (y) 104165 04>>>Can you change

10 Python standard library concise tutorial Table of Contents 1. Operating System Interface 2. File wildcards 3. Command Line Parameters 4. Error output redirection and program termination 5 String Matching 6. Mathematics 7. Internet access 8. Date and Time 9. Data Compression 10 Performance Measurement 11 Quality Control 1. Operating System Interface OSThe module provides a series of modules fo

Home/Python MySQL Tutorial/Calling MySQL Stored Procedures in Python, storedprocedures F you are not familiar with MySQL stored procedures or want to review it as a refresher, you can follow the MySQL stored procedures tutorial. We will create two stored procedures for the demonstration in this

indented is the way python uses grouping statements. At the interactive prompt, you have to enter a tab or several spaces for the contraction. In practice, you need a text editor to prepare more complex input. All the better text editors have the automatic indent function. When a compound statement is input interactively, it must be followed by an empty line (because the parser cannot guess when you enter the last line ). Remember, each line in a bas

Os.putenv () functions: Read and set environment variables.Os.listdir (): Returns all file and directory names under the specified directoryOs.remove () function: Delete a fileOs.system () function: Run shell commandThe OS.LINESEP string gives the line terminator used by the current platform. Windows uses ' \ r \ n ', Linux uses ' \ n ', and Mac uses ' \ R '.Os.path.split () Function: Returns the directory name and file name of a pathThe Os.path.isfile () and Os.path.isdir () functions respecti

This article mainly describes the detailed Python pygame installation process notes. Small series feel very good, now share to everyone, also for everyone to make a reference. Let's take a look at it with a little knitting. See a tutorial today about Python Installing the Pygame module. Feel good, share it. Install Python