如何将具有特定文件扩展名的文件复制到我的python（版本2.5）脚本中的文件夹中？

I'd like to copy the files that have a specific file extension to a new folder. I have an idea how to use os.walk but specifically how would I go about using that? I'm searching for the files with a specific file extension in only one folder (this folder has 2 subdirectories but the files I'm looking for will never be found in these 2 subdirectories so I don't need to search in these subdirectories). Thanks in advance.

我想将具有特定文件扩展名的文件复制到新文件夹。我知道如何使用os.walk但具体如何使用它？我只在一个文件夹中搜索具有特定文件扩展名的文件（此文件夹有2个子目录，但我在寻找的文件永远不会在这两个子目录中找到，所以我不需要在这些子目录中搜索）。提前致谢。

5 个解决方案

#1

import glob, os, shutil

files = glob.iglob(os.path.join(source_dir, "*.ext"))
for file in files:
    if os.path.isfile(file):
        shutil.copy2(file, dest_dir)

Read the documentation of the shutil module to choose the function that fits your needs (shutil.copy(), shutil.copy2() or shutil.copyfile()).

阅读shutil模块的文档，选择适合您需求的函数（shutil.copy（），shutil.copy2（）或shutil.copyfile（））。

#2

If you're not recursing, you don't need walk().

如果您没有递归，则不需要walk（）。

Federico's answer with glob is fine, assuming you aren't going to have any directories called ‘something.ext’. Otherwise try:

假设你没有任何名为'something.ext'的目录，Federico对glob的回答很好。否则尝试：

import os, shutil

for basename in os.listdir(srcdir):
    if basename.endswith('.ext'):
        pathname = os.path.join(srcdir, basename)
        if os.path.isfile(pathname):
            shutil.copy2(pathname, dstdir)

#3

Here is a non-recursive version with os.walk:

这是一个os.walk的非递归版本：

import fnmatch, os, shutil

def copyfiles(srcdir, dstdir, filepattern):
    def failed(exc):
        raise exc

    for dirpath, dirs, files in os.walk(srcdir, topdown=True, onerror=failed):
        for file in fnmatch.filter(files, filepattern):
            shutil.copy2(os.path.join(dirpath, file), dstdir)
        break # no recursion

Example:

例：

copyfiles(".", "test", "*.ext")

#4

This will walk a tree with sub-directories. You can do an os.path.isfile check to make it a little safer.

这将使用子目录遍历树。您可以执行os.path.isfile检查以使其更安全一些。

for root, dirs, files in os.walk(srcDir):
    for file in files:
        if file[-4:].lower() == '.jpg':
            shutil.copy(os.path.join(root, file), os.path.join(dest, file))

#5

Copy files with extension "extension" from srcDir to dstDir...

将扩展名为“extension”的文件从srcDir复制到dstDir ...

import os, shutil, sys

srcDir = sys.argv[1] 
dstDir = sys.argv[2]
extension = sys.argv[3]

print "Source Dir: ", srcDir, "\n", "Destination Dir: ",dstDir, "\n", "Extension: ", extension

for root, dirs, files in os.walk(srcDir):
    for file_ in files:
        if file_.endswith(extension):
            shutil.copy(os.path.join(root, file_), os.path.join(dstDir, file_))

#1

import glob, os, shutil

files = glob.iglob(os.path.join(source_dir, "*.ext"))
for file in files:
    if os.path.isfile(file):
        shutil.copy2(file, dest_dir)