<?xml version="1.0" encoding="utf-8"?>
<feed xml:lang="en-us" xmlns="http://www.w3.org/2005/Atom"><title>Simon Willison's Weblog: lexing</title><link href="http://simonwillison.net/" rel="alternate"/><link href="http://simonwillison.net/tags/lexing.atom" rel="self"/><id>http://simonwillison.net/</id><updated>2008-03-11T05:49:22+00:00</updated><author><name>Simon Willison</name></author><entry><title>python4ply tutorial</title><link href="https://simonwillison.net/2008/Mar/11/pythonply/#atom-tag" rel="alternate"/><published>2008-03-11T05:49:22+00:00</published><updated>2008-03-11T05:49:22+00:00</updated><id>https://simonwillison.net/2008/Mar/11/pythonply/#atom-tag</id><summary type="html">
    
&lt;p&gt;&lt;strong&gt;&lt;a href="http://www.dalkescientific.com/writings/diary/archive/2008/03/09/python4ply_tutorial_1.html"&gt;python4ply tutorial&lt;/a&gt;&lt;/strong&gt;&lt;/p&gt;
python4ply is a parser for Python written in Python using the PLY toolkit, which compiles to Python bytecode using the built-in compiler module. The tutorial shows how to use it to add support for Perl-style 1_000_000 readable numbers.


    &lt;p&gt;Tags: &lt;a href="https://simonwillison.net/tags/compilers"&gt;compilers&lt;/a&gt;, &lt;a href="https://simonwillison.net/tags/lexing"&gt;lexing&lt;/a&gt;, &lt;a href="https://simonwillison.net/tags/parsing"&gt;parsing&lt;/a&gt;, &lt;a href="https://simonwillison.net/tags/python"&gt;python&lt;/a&gt;, &lt;a href="https://simonwillison.net/tags/python4ply"&gt;python4ply&lt;/a&gt;&lt;/p&gt;



</summary><category term="compilers"/><category term="lexing"/><category term="parsing"/><category term="python"/><category term="python4ply"/></entry></feed>