1. http://pythex.org/ : for test Regex online
2. http://www.ucs.cam.ac.uk/docs/course-notes/unix-courses/archived/archived-python-courses/PythonRE/files/PythonRE.pdf
3. http://www.python-course.eu/course.php
4. Some useful materials for Python:Regex.rar, Socket_Python.rar, automatetboringstuff.rar