[Tutor] python parser

[johnf]

I've been in the programming business for over 20 years and I have never had a 
need for a parser.  But recently I have need to convert code from one 
language to a my new language python.  What a better way to learn the new 
language python than a new project.  I decided it might be time to learn a 
little something about parsers too.  However, I soon discovered that I was 
walking into the world of compiler writers and theories of computer 
scientist.  I paid for and downloaded a paper from O'Reilly books on what I 
thought was going to be on 'pyparser'.  But that turned out to be mostly 
theory.  And nothing about the use of pyparser. 

So I ask you guys is there a link to a practical tutorial that provides hands 
on information on the use of a python parser.  I'd like to see something that 
demo's converting a real language to python.  When I google parsers I have 
found a few simple code examples of parsing a float.  Not really much help (I 
could have done that using Regex) when you want to parse 'if,then' statements 
that can be recursive.

Thanks in advance.  
-- 
John Fabiani