子进程cp返回错误-bufsize必须为整数 [英] Subprocess cp returns error - bufsize must be integer

问题描述

我正在尝试从一个目录复制到另一个目录，并通过调用'cp'来同时重命名它们，如下所示：

I'm trying to copy from one directory to another, and rename them at the same time by calling 'cp' like so:

directories = ['/Users/Me/Folder1/File1.txt', '/Users/Me/Folder/File2.txt']
output = ['/Users/Me/Folder2/Hello.txt', 'Users/Me/Folder2/World.txt'] 
for in, out, in zip(directories, output):
    subprocess.call('cp', in, out)

但它会返回：

 File "./test.py", line 33, in <module>
    subprocess.call('cp', in, out)
  File "/usr/local/Cellar/python/2.7.10_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 522, in call
    return Popen(*popenargs, **kwargs).wait()
  File "/usr/local/Cellar/python/2.7.10_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 659, in __init__
    raise TypeError("bufsize must be an integer")
TypeError: bufsize must be an integer

我在做什么错了？

推荐答案

subprocess.call('cp', in, out)

$ 中的b
$ b

是python关键字。最好使用 inp 作为变量名。另外， subprocess.call（）期望参数的列表，而不是多个参数：

in is a python keyword. better use inp as variable name. Also, subprocess.call() expects a list of arguments, not multiple arguments:

for inp, out, in zip(directories, output):
    subprocess.call(['cp', inp, out])

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