posix.py 文件源码

def _get_drive_usage(path):
    """
    Use Python libraries to get drive space/usage statistics. Prior to v3.3, use `os.statvfs`;
    on v3.3+, use the more accurate `shutil.disk_usage`.
    """
    if sys.version_info >= (3, 3):
        usage = shutil.disk_usage(path)
        return {
            "total": usage.total,
            "used": usage.used,
            "free": usage.free,
        }
    else:
        # with os.statvfs, we need to multiple block sizes by block counts to get bytes
        stats = os.statvfs(path)
        total = stats.f_frsize * stats.f_blocks
        free = stats.f_frsize * stats.f_bavail
        return {
            "total": total,
            "free": free,
            "used": total - free,
        }