Pausing execution of code in a for loop between each loop. Howto?

I have a for loop which runs x amount of times and between each loop i’d like to implement a small pause of execution of the code. How would i do that? Can something like that only be done using a timer? If so how would i go about doing that and what things should i import? (Trying to do this in a class)
Though i’m wondering if there’s an easier way than timers to be able to do something like that, like C’s sleep() function for example.