What's the use of _ in python?

Question

I often see for loop written as
for _ in range(5):

instead of
for i in range(5):

What's the difference and what are some other uses of '_'?

Thanks '_'

Answer 1

fascinating/interesting...:
for _ in range(10):
print(_ * 2)
I was aware of using the "_" for tuple/list unpacking. e.g:-
a, _, _, _, b = (10, 11, 12, 13, 14)
print(a, b)
#or
c, *_, d = (10, 11, 12, 13, 14)
print(c, d)

Answer 2

Mirielle👽 Could you explain your second point with an example?

Answer 3

Mirielle👽 Then what is with '__init__' there we use '_' as well, don't we?

Answer 4

rodwynnejones pretty interesting! thanks for sharing