The Python Challenge. Crossplatform Framework for NUI. SimpleCV. Twisted. Twisted is an event-driven networking engine written in Python and licensed under the open source MIT license. Twisted runs on Python 2 and an ever growing subset also works with Python 3. Twisted makes it easy to implement custom network applications. Here's a TCP server that echoes back everything that's written to it: from twisted.internet import protocol, reactor, endpoints class Echo(protocol.Protocol): def dataReceived(self, data): self.transport.write(data) class EchoFactory(protocol.Factory): def buildProtocol(self, addr): return Echo() endpoints.serverFromString(reactor, "tcp:1234").listen(EchoFactory()) reactor.run() Learn more about writing servers, writing clients and the core networking libraries , including support for SSL, UDP, scheduled events, unit testing infrastructure, and much more.
Twisted includes an event-driven web server. Learn more about web application development, templates and Twisted's HTTP client. Twisted includes a sophisticated IMAP4 client library. Sjbrown's Guide To Writing Games. By Shandy Brown. Please send comments / corrections via email to tutorial@ezide.com Last Update: March 2011 Table Of Contents This guide assumes a certain level of knowledge.
If you find it confusing, either you should brush up on some of these concepts, or I should become a better writer. It kind of puts us into an arms race of laziness. Object Oriented Programming It is expected the reader is comfortable in an object oriented environment. Design Patterns Design Patterns are a communication tool; they do not dictate design, they inform the reading of the code. We will start by trying to create a program where a little man moves around a grid of nine squares.
Model View Controller The choice of MVC should be pretty obvious where a graphical game is concerned. We haven't even got to the Model yet, and already we have a difficulty. Here is some more info on the MVC pattern: MVC @ WikipediaMVC @ ootips.org Rationale Mediator Let's examine the infinite while loop in the last bit of code. Game Player. Invent Your Own Computer Games with Python. Python Data Analysis Library — pandas: Python Data Analysis Library.
News. SciPy.org — SciPy.org. Natural Language Toolkit — NLTK 2.0 documentation. Scrapy | An open source web scraping framework for Python. Machine learning in Python.
Learn Python The Hard Way, 2nd Edition — Learn Python The Hard Way, 2nd Edition. Learn Python The Hard Way, 2nd Edition — Learn Python The Hard Way, 2nd Edition. Simple Top-Down Parsing in Python. Fredrik Lundh | July 2008 In Simple Iterator-based Parsing, I described a way to write simple recursive-descent parsers in Python, by passing around the current token and a token generator function. A recursive-descent parser consists of a series of functions, usually one for each grammar rule. Such parsers are easy to write, and are reasonably efficient, as long as the grammar is “prefix-heavy”; that is, that it’s usually sufficient to look at a token at the beginning of a construct to figure out what parser function to call.
For example, if you’re parsing Python code, you can identify most statements simply by looking at the first token. However, recursive-descent is less efficient for expression syntaxes, especially for languages with lots of operators at different precedence levels. For example, here’s an excerpt from Python’s expression grammar. In the early seventies, Vaughan Pratt published an elegant improvement to recursive-descent in his paper Top-down Operator Precedence.