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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def convert_size(size_bytes):
 """ Transform bytesize to a human readable filesize :param size_bytes: bytesize :return: human readable filesize """

    if size_bytes == 0:
        return "0B"
    size_name = ("B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB")
    i = int(math.floor(math.log(size_bytes, 1024)))
    p = math.pow(1024, i)
    s = round(size_bytes / p, 2)
    return "%s %s" % (s, size_name[i])