# -*- coding: UTF-8 -*-  
#!/usr/bin/python3.5
import sys
import os
import shutil

def get_file_size(file_path):
    if os.path.isfile(file_path):
        # 获取文件大小
        file_size = os.path.getsize(file_path)
        return file_size
    else:
        return 0

def main(arg1, arg2):
    new_data = b'\x00'
    # 将原文件另存为新文件
    shutil.copy(arg1, arg2)
    fileSize = get_file_size(arg2);
    if fileSize > 0:
        print("old filename:" + arg1 +", size:" + str(fileSize))
        newSize = (int(fileSize / 240) + 2) * 240;
        print("new filename:" + arg2 +", size:" + str(newSize))
        newSize = newSize - fileSize
        with open(arg2, 'ab') as bin_file:
            count = 0
            while count < newSize:
                count = count + 1
                bin_file.write(new_data)
            print("new file is success!")
    else:
        print("old fileSize is error!")
        
if __name__ == '__main__':
    main(sys.argv[1], sys.argv[2])