def rename_img(path, number):
    """Renames a file path of an image

    Returns a new name of the file path for the resized images

    Parameters
    ----------

    path: a path (str)
        a string that leads to an existing file path
    number: a number (int)
        a number that is used in the concatination for the image rename
    """
    output_path = path + '/' + str(number) + '.jpg'
    return output_path