functions

Question 1

special method of callable instances

Answer 1

__call__()

Question 2

sort function

Answer 2

sorted(iterable, key=None, reverse=False)

Question 3

built-in function which detects a callable object

Answer 3

callable()

Question 4

built-in function which turn several lists into the list of tuples

Answer 4

zip()

Question 5

transpose the list of lists

Answer 5

list(zip(*iterable))