Python Exception Handling - Try, Except and Finally


Python Exception Handling - Try, Except and Finally

In this article, you'll learn how to handle exceptions in your Python program using try, except and finally statements. This will motivate you to write clean, readable and efficient code in Python.
Python has many built-in exceptions which forces your program to output an error when something in it goes wrong.
When these exceptions occur, it causes the current process to stop and passes it to the calling process until it is handled. If not handled, our program will crash.
For example, if function A calls function B which in turn calls function C and an exception occurs in function C. If it is not handled in C, the exception passes to B and then to A.
If never handled, an error message is spit out and our program come to a sudden, unexpected halt.

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