In this Python 3 programming tutorial, we cover the Try and Except statements, which are used for error handling. These statements work similarly to the if-else, where if the Try runs, the except will not run. If the Try fails, then the exception will run with the error that was just generated in the try.
Sample code for this basics series: http://pythonprogramming.net/beginner-python-programming-tutorials/
Python 3 Programming tutorial Playlist: http://www.youtube.com/watch?v=oVp1vrfL_w4&feature=share&list=PLQVvvaa0QuDe8XSftW-RAxdo6OmaeL85M