Contributing¶ Found a typo? Or some awkward wording? Want to add a link to a presentation, a tutorial or a new (or old and missing) WSGI-related tool? Fixing a dead link? WSGI.org is open-source and hosted on github, contributions are encouraged and appreciated.

Learning Python: Child's Play with RUR-PLE! André Roberge, © 2004, 2005 Learning to program computers should be fun, for adults and children alike. RUR-PLE is an environment designed to help you learn computer programming using the language Python. Within an artificial world in which a robot can be programmed to perform various tasks, you will learn what it means to write a computer program, using

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import sre def s_ident(scanner, token): return token def s_operator(scanner, token): return "op%s" % token def s_float(scanner, token): return float(token) def s_int(scanner, token): return int(token) scanner = sre.Scanner([ (r"[a-zA-Z_]\w*", s_ident), (r"\d+\.\d*", s_float), (r"\d+", s_int), (r"=|\+|-|\*|/", s_operator), (r"\s+", None), ]) print scanner.scan("sum = 3*foo + 312.50 + bar") First yo

This note discusses how to use the re module in Python 2.0 and later for lexical analysis. A Simple RE ScannerA scanner reads an input string (e.g. program code) and groups the characters into lexical units, such as keywords and integer literals. Scanners are also known as lexical analysers, or tokenizers. For example, here’s a simple expression: b = 2 + a*10In the above expression, we can identif

You didn't write that awful page. You're just trying to get some data out of it. Beautiful Soup is here to help. Since 2004, it's been saving programmers hours or days of work on quick-turnaround screen scraping projects. Beautiful Soup is a Python library designed for quick turnaround projects like screen-scraping. Three features make it powerful: Beautiful Soup provides a few simple methods and

Fredrik Lundh | August 2006 The ElementSoup module is a (slightly experimental) wrapper for Leonard Richardson’s robust BeautifulSoup HTML parser, which turns the BeautifulSoup data structure into an element tree. The resulting combo is similar to ElementTidy, but a lot less picky. And therefore, a lot more practical. Which is good. Code (latest versions):ElementSoup.py [history] BeautifulSoup.py