S series · several postures for deleting folders

S Also known as water , It can also be read as Small, In the process of daily work and study , Occasionally I will find something I haven't seen before 、 Small 、 Interesting operation , Perhaps these operations are not meaningful for solving the current problems , Still want to record , Maybe you can write a complete article by yourself , Then write it down as a daily account .

Series article description ：

S series ·<< Article title >>

platform ：

• windows 10.0

• python 3.8

• pywin32 227 （ Or install pypiwin32）

• send2trash 1.5.0

Purpose

Delete a directory containing data files .

Delete pose

The following operations are in windows Operating in the system .

• Pose a

Right click the folder directly on the computer , Choose Delete , Or use Delete Press to delete the file , This method deletes files , Will transfer files to the recycle bin , If you need to recover , Click on Restore that will do .

• Position 2

stay python Used in os modular ：

import os

delete_dir = r' Test folder '
for r, d, f in os.walk(delete_dir, topdown=False):
    for files in f:
        os.remove(os.path.join(r, files)) #  Delete file 
    os.removedirs(r)  #  Delete folder , Must be empty 

Use os.walk Traverse the contents of the file to be deleted , Default topdown=True, Output the outermost layer first and then the inner layer , The non empty folder will be output first , It's about using os.removedirs Deleting a non empty folder will try to report an error , take topdown=False, First, export and delete the inner files one by one , Finally, delete the upper folder , Until all are deleted .

• Pose three

pathlib modular ：

from pathlib import Path

delete_dir = Path(r' Test folder ')
#  Delete all files 
[i.unlink() for i in delete_dir.rglob('*') if i.is_file()]
#  Delete all empty folders contained 
[i.rmdir() for i in delete_dir.rglob('*') if i.is_dir()]
#  Delete the current folder 
delete_dir.rmdir()

And os similar , Delete files and folders separately , Two recursions determine whether it is a file or directory , And delete according to the corresponding deletion method , Finally, delete the current folder .

• Position 4

shutil modular

from shutil import rmtree

delete_dir = r' Test folder '
rmtree(delete_dir)

rmtree Recursively return all files and folders in this directory , And delete it , The principle is the same as Position 2 , The following is a rmtree The core code part ：

rmtree First, determine whether the deletion method is safe deletion , Take the safe deletion method as an example , Judge the recursive result , If it is a folder , Determine whether there are files in the inner layer , If you still have recursion , Then delete the recursive result , If it's a document , Delete directly , This way is compared to Position 2 With more judgment on file status .

• send2trash+shell

All of the above python Method to delete a file will be deleted directly , Will not go through the recycle bin , If you want to do something similar to pose one , Installable send2trash modular , Transfer files to the recycle bin .

pip install send2trash

pip install pywin32 ( perhaps pip install pypiwin32)

import send2trash

delete_dir = r' Test folder '
send2trash.send2trash(delete_dir)

win32com yes pywin32 A module in the package , call shell Methods to treat the recycle bin .

from win32com.shell import shell, shellcon

def recyclebin_empty(confirm=True, show_progress=True, sound=True):
    flags = 0
    if not confirm:  #  Prompt box 
        flags |= shellcon.SHERB_NOCONFIRMATION
    if not show_progress:  #  Delete progress 
        flags |= shellcon.SHERB_NOPROGRESSUI
    if not sound:  #  Complete the tone 
        flags |= shellcon.SHERB_NOSOUND
    shell.SHEmptyRecycleBin(None, None, flags)  

recyclebin_empty(False, False, False)

Define a function , By default, the prompt box for emptying the recycle bin will be displayed , Display progress and delete completion prompt tone . The combination of the two functions can realize Pose a Operation process .

summary

This article through several postures , Delete the files to be deleted , Pure sharing of personal insights , Deleting a file is basically done with your hands , Before using the computer, I accidentally had a draught , Use it directly shutil.rmtree To delete the occasional Caton , I thought this deletion method was very slow , So I searched the Internet , Then use pathlib Modules can be deleted quickly , Just when I wanted to share this , I restart the computer and run it again , Find out shutil.rmtree Can delete quickly , After several tests ,shutil.rmtree comparison pathlib Faster delete , Why the deletion took a long time is unknown .

Misty rain in this mountain , Only scholars and poets remain .

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2022.6.8 leave