A "For" Loop is used to repeat a specific block of code a known number of times. For example, if we want to check the grade of every student in the class, we loop from 1 to that number. When the number of times is not known before hand, we use a "While" loop.

What is for loop and example?

In computer science, a for-loop (or simply for loop) is a control flow statement for specifying iteration, which allows code to be executed repeatedly. ... There are other possibilities, for example COBOL which uses "PERFORM VARYING".

What does ITER function do in Python?

The Python iter() function returns an iterator for the given object. The iter() function creates an object which can be iterated one element at a time. These objects are useful when coupled with loops like for loop, while loop.