Exception Handling in Python | Python Series for Beginners | Lecture 22

Pubblicato il: 17 agosto 2024
sul canale di: Helloworld_Avani
221
8

Welcome to Lecture 22 of our Python for Beginners series! In this video, we dive deep into the crucial concept of Exception Handling. Whether you're new to programming or looking to solidify your understanding, this lecture is perfect for you.

*What You'll Learn:
-Definitions: Understand what exceptions are and why they are essential.
-Operations: Learn how to use try, except, else, and finally blocks effectively.
-Coding Activities: We'll go through practical coding exercises to implement exception handling in real scenarios.

*Practice Questions:
1-Write a Python program that prompts the user to enter a number and catches any ValueError if the input is not a number.
2-Create a function that takes a list of numbers and returns the sum. Use exception handling to manage non-numeric inputs.
3-Develop a script to read a number from the user and raise a ValueError if the input is not a positive integer.
4-Implement a program to open a file and read its content. Handle possible exceptions like FileNotFoundError.
5-Write a function that calculates the square root of a number. Use exception handling to manage negative inputs.

*Quiz Question:
What will be the output of the following code ?
try:
num = int(input("Enter a number: "))
print(f"You entered: {num}")
except ValueError:
print("Invalid input. Please enter a number.")
else:
print("Input was successful.")
finally:
print("Execution complete.")

A. Invalid input. Please enter a number.
Execution complete.
B. You entered: [number]
Input was successful.
Execution complete.
C. Input was successful.
Execution complete.
D. Invalid input. Please enter a number.

Share your answer in the comments below!

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Happy coding, and remember, practice makes perfect!

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