Error Handling
Understanding Common Python Errors
Explore frequently encountered errors like ZeroDivisionError, ValueError, and IndexError, and understand how to recognize and fix them.
Question1.
What type of error occurs when dividing a number by zero?
Question2.
What error is raised when you pass an invalid value to int()?
Question3.
What error is raised when accessing a list index that doesn’t exist?
Question4.
If you try to open a file that does not exist using open('missing.txt'), which specific error will Python raise?
Question5.
Predict the error:
Question6.
What kind of error is this?
Question7.
What’s the issue here?
Question8.
Which error occurs when trying to use a variable before it's defined?
Handling Exceptions with try, except, finally
Learn how to catch and handle errors using try, except, and finally blocks to prevent your program from crashing during runtime.
Question1.
What keyword starts a block of code that might raise an error?
Question2.
What keyword catches and handles errors?
Question3.
Can a try block have multiple except clauses?
Question4.
Which block is best for closing files or releasing resources?
Question5.
Which block executes only if no exception is raised in the try block?
Raising and Creating Custom Errors
Use the raise keyword to throw your own errors and create custom exception classes for more meaningful error handling.
Question1.
What keyword stops execution and throws an error intentionally?
Question2.
Which built-in class should a custom error inherit from?
Question3.
What error will this raise?
raise "Error!"
Question4.
Which dunder method is often used to store a custom error message?
Question5.
Fill in the blank:
class LoginError(__________): pass
Question6.
Output of this:
