Using an iterator in python?

Question

I have just learned about iterators in Python however I am having a hard time implementing them.

I am trying to write a class to so that this loop works:

Answer 1

You need another variable to track the current number:

def __init__(self, number):
    self.number = number
    self.current = 1

Then you need to compare it with the ending number, and maybe increment it:

def __next__(self):
    if self.current > self.number:
        raise StopIteration
    current = self.current
    self.current += 2
    return current