PCEP Section 4D: Basics of Python Exception Handling

Which of the following is the correct syntax for handling exceptions in Python?

• try: ... except: ...

• catch: ... except: ...

• try: ... catch: ...

• handle: ... except: ...

What is the purpose of the `finally` clause in a try-except block?

• To execute code only if an exception occurs

• To execute code only if no exception occurs

• To execute code regardless of whether an exception occurs or not

• To raise a new exception

Which keyword is used to raise an exception in Python?

• throw

• raise

• except

• error

Given the following code, which exception will be caught? ```python try: x = 1 / 0 except ZeroDivisionError: print("Zero division!") except Exception: print("General exception!") ```

• "Zero division!"

• "General exception!"

• No output

• SyntaxError

Which of the following is the correct way to handle multiple specific exceptions in a single except block?

• except (TypeError, ValueError):

• except TypeError or ValueError:

• except [TypeError, ValueError]:

• except TypeError, ValueError:

What happens if an exception is not caught in a function?

• The program ignores the exception

• The exception propagates to the calling function

• The function returns None

• The program automatically fixes the error

Which of the following best describes exception propagation?

• Passing an exception to another function for handling

• Ignoring exceptions in the current function

• Raising a new exception after catching one

• Handling all exceptions at the top level only

Consider the following code: ```python try: print("A") raise ValueError("Error!") except TypeError: print("B") finally: print("C") ``` What is the output?

• A B C

• A C

• B C

• A

Which of the following is the correct way to define a custom exception class in Python?

• class MyError(Exception): pass

• class MyError: pass

• def MyError(Exception): pass

• class MyError(): pass

Why is the order of except branches important in a try-except block?

• Because Python executes all except blocks

• Because more general exceptions should come before specific ones

• Because the first matching except block is executed

• Because except blocks are optional