I have a doubt in a code

Question

Recently I saw in a py code a statement like
"for _ for _ in range" but I can't find the code

Cam someone explain me the meaning

Answer 1

'_' can be considered as a variable name.

Answer 2

Like @Arsenic said if you use _ in beginning it will become varaible.Maybe your code was like this:
https://code.sololearn.com/ca16A11a24a1

Answer 3

Thanks a lot everyone I can't mark anyone best all are the best

Answer 4

_ as variable name (instead of i or j or whatever) is sometimes used in loops when you do not need access _.

edit:
Maybe it was some list comprehension?
x = [_ for _ in range(5)]