Definition

  • Exception handling in Python is a mechanism that allows a program to deal with errors or exceptions that occur during execution without crashing. It enables the program to respond to different error conditions gracefully.

Examples

try:

    Result = 10 / 0  # This will raise a zerodivisionerror

except zerodivisionerror:

    print("Cannot divide by zero!")

finally:

    print("This will always execute.")

Output

Cannot divide by zero!

This will always execute.

Features

  • Try Block: Code that may raise an exception is placed inside the try block.
  • Except Block: Catches and handles the specific exception that occurs.
  • Finally Block: Executes code regardless of whether an exception occurred or not, often used for cleanup.
  • Else Block: Executes if no exception was raised in the try block. 

Advantages

  • Prevents program crashes by handling errors
  • Makes the code more readable and easier
  • Ensures that resources like files or network connections are properly closed

Uses

  • Dealing with network-related errors such as timeouts or connection issues.
  • Managing errors that arise from invalid user inputs
  • Handling errors like file not found

Categorized in:

Python,

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