Edited wiki page PythonStyleGuide and updated the information.

PythonStyleGuide.wiki

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 The [SoCOverview SoC framework], and
 [MelangeIntro Melange web applications] built upon it, are implemented in
-Python (since that is the only programming language currently supported by
+Python (it is one of the programming language besides Java and Go which are currently supported by
 [http://code.google.com/appengine/ Google App Engine]).  This style guide is a
 list of dos and don'ts for Python contributions to the Melange project.