![try:
even_numbers = [2,4,6,8]
print(even_numbers[5])
except ZeroDivisionError:
print("Denominator cannot be 0.")
except IndexError:
print("Index Out of Bound.")
# Output: Index Out of Bound
Multiple except
Block
try:
num = int(input("Enter a
number: ")) num % 2 == 0
except:
print("Not an even number!")
else:
print("its a even number")
The else Clause](https://image.slidesharecdn.com/exceptionhandlinginpython-241222112822-648bec77/85/Exception-Handling-in-Python-topic-pptx-6-320.jpg)
Exception Handling in Python topic .pptx
- 2. What is an Exception? In Python, an exception is an event that occurs during the execution of a program that disrupts the normal flow of the program's instructions. Why exceptions occur in programs? Code errors: A software engineer may make a mistake, such as using a null resource or passing the wrong parameter to a function Invalid user input: The user may input something that is invalid or unacceptable Device failure: A system failure can occur, which is a run-time error that cannot be handled programmatically Arithmetic errors: A program may make a mistake in a mathematical calculation or operation
- 3. Importance of Exception Handling Exception handling is important because it allows programs to handle errors that occur during execution. It's especially important in the following situations: •Handling errors Exception handling allows programs to distinguish between normal and erroneous return values. This is especially important in geospatial programming, where issues like missing files or corrupt data can occur. Separating error-handling code Exception handling separates the details of what to do when something unexpected happens from the main logic of a program Handling concurrency In multi-threaded applications, exceptions thrown by one thread can propagate to other threads, causing the application to crash. Exception handling can prevent this from happening.
- 5. The TRY block lets you test a block of code for error. The EXCEPT block lets you handle the error. Syntax: try: # Code that may cause an exception except ExceptionType: # Code to handle the exception The try-except Block try: x = 10 / 0 except ZeroDivisionError: print("Cannot divide by zero!") The try-except Block
- 6. try: even_numbers = [2,4,6,8] print(even_numbers[5]) except ZeroDivisionError: print("Denominator cannot be 0.") except IndexError: print("Index Out of Bound.") # Output: Index Out of Bound Multiple except Block try: num = int(input("Enter a number: ")) num % 2 == 0 except: print("Not an even number!") else: print("its a even number") The else Clause