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Run-time exception handling may still seem "new" even though the concept has been around for a long time, but it is pretty much of a requirement of most modern-day programming languages. This lesson begins with a review of exceptions then discusses how to accomplish exception handling in Python. The latter part of the lesson covers other exception-related functionality featuring the else, finally, raise, and assert statements as well as how to create (and use) exception classes. The lesson concludes with what you CANNOT do with exceptions as well as a reminder that not all exceptions mean some error is involved... they can be just warnings or simple notification of loop termination.