Quick Check: Python Argument Unpacking

Check your understanding of positional and keyword argument unpacking with * and ** in function calls.

5 questions ~5 min

Knowledge check

Check your understanding of positional and keyword argument unpacking with * and ** in function calls.

You can retake this quiz whenever you like.

0:00

0/0

What does `*values` do when it appears in a function call?

In a call, a leading asterisk expands an iterable into separate positional arguments.
What does `**options` do in a function call?

In a call, double-star unpacking supplies keyword arguments from a mapping.
Can a function call contain more than one `*` iterable unpacking?

Python function calls may contain multiple iterable unpackings, and their produced items become positional arguments.
What kind of object is required after `**` in a function call?

Double-star argument unpacking requires a mapping, and function-call keyword keys must be strings.
What is the key difference between `*args` in a definition and `*values` in a call?

The same punctuation has opposite caller/callee roles: definitions collect arguments, while calls unpack values.

Back to lesson Next: Python Functions

What does `*values` do when it appears in a function call?