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This week, we're updating our course layouts and descriptions. Presentation and materials always gently change over time, but just occasionally there's a need to make a step change to clear out some of the old and roll in the new. That's now happening - but over a long and complex site it's not instant and you'll see sections of the site changing up to and including 19th September.

See also [here] for status update
 
Disassembling Python and Java - previously compiled code

Most modern languages translate the source code you give into an intermediate byte code prior to it being run, and in can sometimes be useful and instructive to reverse engineer the code to help to understand what's going on within the more arcane elements of the language. Some languages actually provide tools to help you ...

In Python, the dis (for disassemble) module provides the functionality - see [here] for an example. In java, the javap utility with a -c option does the job for you. For Lua, disassembers such as luadec are available third party, and it gets very interesting with PHP, Ruby and Perl, assuming you even have the compiled code available.
(written 2011-01-29, updated 2011-02-10)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
A502 - Web Application Deployment - Java - Basic Tools
  [3819] Packing a tar, jar or war file - best practise - (2012-07-26)
  [2859] Using java, javac, jar, and CLASSPATH - a simple example - (2010-07-07)
  [2422] Looking inside Java classes - javap and javadoc - (2009-09-25)
  [2153] Class Loading and Variable Conversion in Java - (2009-05-02)
  [1909] javax.servlet cannot be resolved - how to solve - (2008-11-26)
  [1771] More HowTo diagrams - MySQL, Tomcat and Java - (2008-08-24)
  [1562] Java Compiler - needs all classes, compiles them all too - (2008-03-03)
  [1192] What are WEB-INF and META-INF directories? - (2007-05-18)
  [1082] Straight from the .jar - (2007-02-16)
  [754] tar, jar, war, ear, sar files - (2006-06-10)

Y150 - Python Development Tools and Environments
  [2452] Making executable binaries in Python (or Perl) - (2009-10-12)
  [2370] C++, Python, and other training - do we use an IDE - (2009-08-21)
  [2123] Using Python with OpenOffice - (2009-04-09)
  [745] Python modules. The distribution, The Cheese Shop and the Vaults of Parnassus. - (2006-06-05)
  [316] Development Environments - (2005-05-19)


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Rake - a build system using code written in Ruby
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Jargon busting
Disassembling Python and Java - previously compiled code
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Looking back at www.wellho.net
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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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