try and except in Python

 

Example 1: Handling a Specific Exception

try:

    # Code that might raise an exception

    num = int(input("Enter a number: "))

    result = 10 / num

    print("Result:", result)

​

except ZeroDivisionError:

    # Handle the specific exception (division by zero)

    print("Error: Cannot divide by zero.")

​

except ValueError:

    # Handle the specific exception (invalid input for conversion to int)

    print("Error: Please enter a valid number.")

    

#clcoding.com

Enter a number: 5

Result: 2.0

Example 2: Handling Multiple Exceptions

try:

    file_name = input("Enter the name of a file: ")

    

    # Open and read the contents of the file

    with open(file_name, 'r') as file:

        contents = file.read()

        print("File contents:", contents)

​

except FileNotFoundError:

    # Handle the specific exception (file not found)

    print("Error: File not found.")

​

except PermissionError:

    # Handle the specific exception (permission error)

    print("Error: Permission denied to access the file.")

    

except Exception as e:

    # Handle any other exceptions not explicitly caught

    print(f"An unexpected error occurred: {e}")

​

    #clcoding.com

Enter the name of a file: clcoding

Error: File not found.

Example 3: Using a Generic Exception

try:

    # Code that might raise an exception

    x = int(input("Enter a number: "))

    y = 10 / x

    print("Result:", y)

​

except Exception as e:

    # Catch any type of exception

    print(f"An error occurred: {e}")

    

 #clcoding.com

Enter a number: 5

Result: 2.0

​