Multiple exception handling in Python - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is multiple exception handling in Python?

It is a way to catch and handle more than one type of error in a single try block using multiple except clauses.

beginner

How do you write multiple except blocks in Python?

You write several except blocks after a try block, each specifying a different exception type to handle.

beginner

What happens if an exception is not caught by any except block?

The program stops and shows an error message called a traceback.

intermediate

Can you catch multiple exceptions in one except block? How?

Yes, by grouping exceptions in a tuple after except, like except (TypeError, ValueError):

intermediate

Why is it useful to handle multiple exceptions separately?

Because different errors may need different fixes or messages, so handling them separately helps make the program clearer and safer.

Which keyword starts the block where you try code that might cause errors?

A try

B except

C catch

D finally

The try block contains code that might raise exceptions.

How do you catch both ValueError and TypeError in one except block?

A except (ValueError, TypeError):

B except ValueError, TypeError:

C except ValueError | TypeError:

D except ValueError & TypeError:

Use a tuple of exceptions inside parentheses after except.

What happens if an exception is raised but no except block matches it?

A The program ignores the error

B The program continues normally

C The program crashes and shows a traceback

D The program restarts automatically

Uncaught exceptions cause the program to stop and print an error traceback.

Which of these is a correct way to handle multiple exceptions separately?

A try: ... except ValueError, TypeError: ...

B try: ... except ValueError & TypeError: ...

C try: ... except ValueError | TypeError: ...

D try: ... except ValueError: ... except TypeError: ...

You write separate except blocks for each exception type.

Why might you want to handle exceptions separately instead of together?

A To make the code longer

B To give specific responses to different errors

C To confuse the reader

D To avoid using try blocks

Different errors may need different fixes or messages.

Explain how to use multiple except blocks to handle different exceptions in Python.

Think about writing one except block for each error you want to catch.

Describe how to catch multiple exceptions in a single except block and why you might do this.

Use parentheses and commas to group exceptions.