150 words or more. Please use and site at least two references below.
Downey, A. (2014). Think Python: How to Think Like a Computer Scientist. Retrieved August 6, 2014, from http://www.greenteapress.com/thinkPython/html/index.html
Swaroop, C. (2005). A Byte of Python. Retrieved from August 6, 2014, from (http://www.ibiblio.org/g2swap/byteofPython/read/index.html)
Hetland, M. (n.d.). Instant Python. Retrieved August 6, 2014, from http://hetland.org/writing/instant-Python.html
Hetland, M. (n.d.) Instant Hacking. Retrieved August 6, 2014, from (http://www.hetland.org/Python/instant-hacking.php)