Overview — Python v3.2.2 documentation. The Hitchhikers Guide to Python! — pythonguide 0.0.1 documentation. Welcome to The Hitchhiker’s Guide to Python.
This guide is currently under heavy active development. If you’d like to help, fork us on GitHub! This opinionated guide exists to provide both novice and expert Python developers a best-practice handbook to the installation, configuration, and usage of Python on a daily basis. Getting Started. Hitchhiker's Guide to Python « late.am. I first heard about The Hitchhiker’s Guide to Python at PyCodeConf a few months ago. It’s a fantastic idea: open source, community-driven documentation on how to do Python right: everything from how to learn Python, to how to write idiomatic code, to how to distribute your projects, to surveys of best-of-breed open source projects and libraries you can build projects and applications on top of. Many many thanks to Kenneth Reitz for creating and maintaining the project, which is hosted at GitHub. At this time, the Hitchhiker’s guide is a little rough around the edges: many sections are only outlined, and need content written; other sections may not even exist yet.
We can safely consider it a first draft, or, if you prefer, an alpha. This sort of undertaking is effectively impossible for one person to maintain—one person can’t possibly know of every project, library, and idiom. Python Tutorials, more than 300, updated March 2, 2009 and carefully sorted by topic and category. Audio Podcasts from PyCon 2009 ShowMeDo's Learning Path Tutorials Setting Up Python Beginning Python Programming Intermediate Python Python for Strong Pythonistas Full Projects in Python pyGame for Python Games Python 3.0 Introduction Scientific Python Programming Python GUI Programming Beginner Python Web Programming Beginner Django Programming Python IDEs and Tools New Stuff Create Python GUIs using HTML Online Videos from PyCon 2009 Functional Testing of GUI Applications Metaclasses in Five Minutes Easy AI with Python by Richard Hettinger Generator Tricks for Systems Programmers A Curious Course on Coroutines and Concurrency Monads in Python Python 3.0 Tutorial Short Intro to Python by Alex Martelli Video Tutorials Python Screencasts: the Best Tech Videos on the Net Show-Me-Do Video TutorialsBrad Allen's Collection of Video TutorialsVPython Video TutorialsIntroduction to Programming with Python and Tkinter Video Tutorials Categorized Tutorials Grimoire.
Beginners make mistakes. This article highlights a few common mistakes, including some I made myself. Beginner's mistakes are not Python's fault, nor the beginner's. They're merely a result of misunderstanding the language. Dive Into Python. Lesson 10 - File I/O. Introduction Last lesson we learnt how to load external code into our program.
Without any introduction (like what I usually have), let's delve into file input and output with normal text files, and later the saving and restoring of instances of classes. (Wow, our lingo power has improved greatly!) Opening a file To open a text file you use, well, the open() function. Code Example 1 - Opening a file openfile = open('pathtofile', 'r') openfile.read() That was interesting. Seek and You Shall Find Did you try typing in print openfile.read()? Whence is optional, and determines where to seek from. Offset decribes how far from whence that the cursor moves. for example: openfile.seek(45,0) would move the cursor to 45 bytes/letters after the beginning of the file.openfile.seek(10,1) would move the cursor to 10 bytes/letters after the current cursor position.openfile.seek(-77,2) would move the cursor to 77 bytes/letters before the end of the file (notice the - before the 77) Try it out now. Nifty, eh? File Management in Python.
Introduction The game you played yesterday uses files to store game saves.
The order you placed yesterday was saved in a file. That report you typed up this morning was, obviously, stored in a file as well. File management is an important part of many applications written in nearly every language. Python is no exception to this. Reading and Writing The most basic tasks involved in file manipulation are reading data from files and writing data to files. FileHandle = open ( 'test.txt', 'w' ) The "w" indicates that we will be writing to the file, and the rest is pretty simple to understand. FileHandle.write ( 'This is a test. This will write the string "This is a test. " to the file's first line and "Really, it is.
" to the file's second line. FileHandle.close() As you can see, it's very easy, especially with Python's object orientation.