具有通配符支持的Python Windows文件复制 [英] Python Windows File Copy with Wildcard Support

问题描述

我一直在这样做:

result = subprocess.call(['copy', '123*.xml', 'out_folder\\.', '/y'])
if result == 0: 
    do_something()
else:
    do_something_else()

直到今天，我开始研究pywin32模块，然后才看到诸如win32file.CopyFiles()之类的功能，但是后来我发现它可能不支持将文件复制到目录中.也许此功能隐藏在某个地方，但我还没有找到它.

Until today I started to look into pywin32 modules, then I saw functions like win32file.CopyFiles(), but then I found it may not support copying files to a directory. Maybe this functionality is hidden somewhere, but I haven't found it yet.

我也尝试过"glob"和"shutil"的组合，但是如果有很多文件，"glob"的运行速度会令人难以置信.

I've also tried "glob" and "shutil" combination, but "glob" is incredibly slow if there are many files.

那么，您如何使用Python模拟该Windows命令?

So, how do you emulate this Windows command with Python?

copy 123*.xml out_folder\. /y

推荐答案

以下代码提供了可移植的实现.

The following code provides a portable implementation.

请注意，我使用的是iglob(Python 2.5中已添加)，它创建了一个生成器，因此它不会首先将整个文件列表加载到内存中(这就是glob的作用).

Note that I'm using iglob (added in Python 2.5) which creates a generator, so it does not load the entire list of files in memory first (which is what glob does).

from glob import iglob
from shutil import copy
from os.path import join

def copy_files(src_glob, dst_folder):
    for fname in iglob(src_glob):
        copy(fname, join(dst_folder, fname))

if __name__=='__main__':
    copy_files("123*.xml", "out_folder")

其他文档:

• shutil.copy
• os.path.join
• glob.iglob

• shutil.copy
• os.path.join
• glob.iglob

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