Abstract
In this chapter, we introduce the concept of exception handling in Python.
They are used to specify the alternate sequence of actions the program needs to jump to
at the occurrence of the event. For example, if we want to print several pages from the
printer and somewhere in the middle of the job the paper gets stuck in the printer. In
such as situation we would want to jump to the function that aborts the printing and
handles this situation by instant shut down of the printer. In such events comes the
exception handling. When the program jumps to the exception handler part the current
sequence of commands is abandoned and the commands given to the exception handler
are executed. After the exception is tackled the programming returns to the point where
the marker left.
Keywords: Error handling, Event notification.
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