[英]Python loop through folders and rename files
I am trying to go through a bunch of folders and go into each one and rename specific files to different names. 我试图浏览一堆文件夹,进入每个文件夹,然后将特定文件重命名为不同的名称。 I got stuck on just the loop through folders part.
我被卡在文件夹循环中。
My file system looks as follows: 我的文件系统如下所示:
Root Directory
Folder
File1
File2
File3
Folder
File1
File2
File3
The code I have is: 我的代码是:
os.chdir(rootDir)
for folder in os.listdir():
print(folder)
os.chdir(rootDir + 'folder')
for f in os.listdir():
print(f)
os.chdir(rootDir)
So in my mind it will go through the folders then enter the folder and list the files inside then go back to the root directory 因此在我看来,它将遍历文件夹,然后进入文件夹并列出其中的文件,然后返回到根目录
Have a look at os.walk
看看
os.walk
import os
for dir, subdirs, files in os.walk("."):
for f in files:
f_new = f + 'bak'
os.rename(os.path.join(root, f), os.path.join(root, f_new))
You need os.walk
. 您需要
os.walk
。 It returns a 3-tuple (dirpath, dirnames, filenames) that you can iterate. 它返回一个3元组(目录路径,目录名,文件名),您可以对其进行迭代。
def change_files(root_dir,target_files,rename_fn):
for fname in os.listdir(root_path):
path = os.path.join(root_path,fname)
if fname in target_files:
new_name = rename_fn(fname)
os.move(path,os.path.join(root_path,new_name)
def rename_file(old_name):
return old_name.replace("txt","log")
change_files("/home/target/dir",["File1.txt","File2.txt"],rename_file)
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