python - IO错误: [Errno 22] Invalid argument python write

Question

我正在写入网络共享，这是写入的代码

while not created:
    fileName = ''.join(random.choice(CANDIDATE_CHARS) for x in range(len))
    fullPath = os.path.join(base, fileName)
    if not os.path.exists(fullPath):
        filesize = random.randint(fileSizeLowerLim, fileSizeUpperLim)
        logger.info("Creating file %s, with size %d" %(fullPath, filesize))
        with open(fullPath, 'wb') as fout:
            if filesize > 0:
               fout.write(os.urandom(filesize * 1048576))
               sizeLimit -= filesize
        allFiles.append(fullPath)
        created = True
logger.info("Created file %s, now limit is %d" %(fullPath, sizeLimit))

我收到此错误:

fout.write(os.urandom(filesize * 1048576))
  IOError: [Errno 22] Invalid argument
  job remoteMachine finished ended with rc = 1
  remoteMachine finished and it failed

当我查看文件时，它已生成但没有数据。我在 python 中错过了什么吗？

我正在使用 32 位 python 在 Windows 7 上运行脚本。

Answer 1

我怀疑您的“urandom”缓冲区超过 64MB，因此出现 Windows operating system limit ，这也同样影响了其他人 writing to a network share .