from hurry.filesize import size

def filesize(bytes: int, spaces: bool = True):
    system = [
        (1024 ** 5, ' PB'),
        (1024 ** 4, ' TB'),
        (1024 ** 3, ' GB'),
        (1024 ** 2, ' MB'),
        (1024 ** 1, ' KB'),
        (1024 ** 0, ' B'),
    ]
    x = size(bytes, system=system)
    if spaces:
        return x
    else:
        return x.replace(' ', '')