Basics

Question 1

Return x if it is positive or 0

without if

Answer 1

max(0, x)

Question 2

Variable name for assigning useless value

Answer 2

_

underscore

Question 3

Function arguments order

Answer 3

fun(arg1, arg2, *args, kw1, kw2, **kwargs)

Question 4

Add padding do string

Answer 4

.ljust(width, fillchar=’ ‘)

.rjust(width, fillchar=’ ‘)

Question 5

Function only keyword argument

cannot be entered as positional

Answer 5

def fun(item, *, arg):
...

Question 6

Can you use return in generator definition?

Answer 6

Yes, it ends generator execution (no more yields)

Question 7

iterator
vs
iterable

Answer 7

Iterator can be passed to next() function to return another item.
Iterable returns when passes to iter() function. Iterable can be looped over with for loop.

Question 8

What is generator?

Answer 8

Function with yield keyword that works like iterator