How to handle exceptions in Python using try-except blocks?
How to handle exceptions in Python using try-except blocks?
Ask by Steilla Mitchel
Updated 05 Jul 2023
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How to handle exceptions in Python using try except blocks
In Python, exceptions are events that occur during the execution of a program that disrupt the normal flow of the program. Exceptions can be caused by a variety of things, such as invalid input, trying to divide by zero, or accessing a nonexistent object.
To handle exceptions in Python, you can use try except blocks. A try except block is a block of code that is executed as a "normal" part of the program. However, if an exception occurs during the execution of the try block, the except block is executed instead.
The syntax for a try except block is as follows:
Python
Here is an example of a try except block:
Python
This code will first ask the user to enter a number. If the user enters a valid number, the result of the division will be printed. However, if the user enters an invalid number or tries to divide by zero, an exception will be raised and the appropriate except block will be executed.
The
elseblock in a try except block is executed if no exception occurs. This is useful for code that you want to execute only if the try block executes without any errors.