Exact range replica. I wanted to learn about python generators so I made a range replica

range_replica.py

def new_range(start, stop, step=1):
    """
    A copy of the normal python range generator
    :param start: The number to start at
    :param stop: The number to stop at (function stops at stop - step)
    :param step: start + step until stop - step is reached
    :return: Current number
    """
    # If the resulting logic is an infinitely long generator (start can never reach stop - step)
    if (start < stop and step < 0) or (start > stop and step > 0):
        return

    # Iterates start value positively
    if start < stop:
        while start < stop:
            yield start
            start += step

    # Iterates start value negatively
    elif start > stop:
        while start > stop:
            yield start
            start += step