How well do you know Functions?

For each of the following examples write down the answer you expect to see Python output.

A function is:

Like a black box that takes input and returns output A kind of work party with free food and drink Only something that we learned about in mathematics

What is returned when your function doesn't have a return statement

False None -1

What is one good use for a keyword argument

Leaving comments for other staff members So the code runs faster For a default value

Which of these characters can you never put into a function name

_ (underscore) B (capital B) - (minus sign)

What does the 'dir' function do?

Returns maximum of two values Returns a list all method names attached to an object Returns a random word with 6 characters or less

What is a doc-string?

A string on the line after the function name, it explains the purpose of the function A comment you leave before a tricky bit of code A medical doctor that knows Python

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