def get_hd_used_space():
    """
    get_hd_used_space()

    Returns the amount of space used on the machine (float)
    """
    capacity = float(get_hd_capacity())
    available = float(get_free_hd_space("gigabytes"))
    return available - capacity
dataset/ETHPy150Open facebook/IT-CPE/code/lib/modules/sys_tools.py/get_hd_used_space/swapped operands of `-`