Python Python 2

Question 1

What does the `*args` syntax in a function definition allow?

Accepted Answer

Accept any number of positional arguments

Answer

`*args` collects extra positional arguments into a tuple inside the function.

Question 2

Which method removes and returns the last element of a Python list?

Accepted Answer

pop()

Answer

`list.pop()` removes and returns the last element by default, or an element at a given index.

Question 3

What is the output of `bool([])` in Python?

Accepted Answer

False

Answer

An empty list is falsy in Python, so `bool([])` returns `False`.

Question 4

Which keyword is used to define a generator function in Python?

Accepted Answer

yield

Answer

Using `yield` instead of `return` makes a function a generator that produces values lazily.

Question 5

What does the `is` operator check in Python?

Accepted Answer

Object identity

Answer

`is` checks whether two variables refer to the exact same object in memory, not just equal values.

Python Practice Test