BaseHTTPServer uses classes from SocketServer to create base classes for making HTTP servers. HTTPServer can be used directly, but the BaseHTTPRequestHandler is intended to be extended to handle each protocol method (GET, POST, etc.).
"The subprocess module provides a consistent interface to creating and working with additional processes. It offers a higher-level interface than some of the other available modules, and is intended to replace functions such as os.system(), os.spawn*(), os.popen*(), popen2.*() and commands.*(). To make it easier to compare subprocess with those other modules, many of the examples here re-create the ones used for os and popen."
A good reference and cheatsheet for doing regular expressions in perl.
In this interactive tutorial, we'll cover many essential Python idioms and techniques in depth, adding immediately useful tools to your belt.
Python programming wiki reference.
Fantastic tutorial on learning android development by creating a basic touch calculator
android tutorial for beginners. Explains core concepts android platform and its history.