Handling Exceptions with try and except

The try...except statement is used to handle exceptions (errors) that may occur during the execution of a program.

Handling exceptions can enhance the stability of a program and protect users and data from unexpected errors.

You write code that might cause an exception inside the try block. The code that handles the exception if it occurs is written inside the except block.

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try:
    result = 10 / 0
except ZeroDivisionError:
    print("Cannot divide by zero.")

In the example above, 10 / 0 raises a ZeroDivisionError, an exception that occurs when dividing a number by zero. This exception is handled by the except block, allowing the program to continue running without interruption.

You can use multiple except blocks to handle different types of exceptions. Each block corresponds to a specific type of exception.

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try:
    # Code that may raise different types of exceptions
    ...
except ZeroDivisionError:
    print("Cannot divide by zero.")
except ValueError:
    print("Invalid input.")
except Exception as e:
    print(f"An unexpected error occurred: {e}")