Python built-in module (shutil)--034

First, Introduction

Shutil is an advanced file, folder, compression package processing module

Second, use

1. Copy the contents of the file to another file "Shutil.copyfileobj (FSRC, fdst[, length])"

Import shutilf1 = open ("E:\python-project\\f1.txt", ' R ', encoding= ' utf-8 ') F2 = open ("E:\python-project\\f2.txt", ' W ', encoding= ' Utf-8 ') shutil.copyfileobj (F1,F2)

　　

2. copy files (copy files) "Shutil.copyfile (SRC, DST)"

Import shutilshutil.copyfile (' E:\python-project\\f1.txt ', ' E:\python-project\\f3.txt ')

　　

3, copy only permissions, content, group, users are unchanged "Shutil.copymode (SRC, DST)"

Import Shutilshutil.copymode ("E:\python-project\\f1.txt", ' E:\python-project\\f3.txt ')

　　

4. Only copy the status information, including: Mode Bits,atime,mtime,flags "Shutil.copystat (SRC, DST)"

Import Shutilshutil.copystat ("E:\python-project\\f1.txt", ' E:\python-project\\f3.txt ')

5. Copy files and Permissions "Shutil.copy (SRC, DST)"

　　

6. Copy files and status information "Shutil.copy2 (SRC, DST)"

Import shutilshutil.copy2 ("E:\python-project\\f1.txt", ' E:\python-project\\f5.txt ')

　　

7. Recursive go-to-copy folder "Shutil.copytree (src, DST, Symlinks=false, Ignore=none)"

Import Shutilshutil.copytree ("E:\python-project\Atm", ' E:\python-project\\a ')

　　

8. Recursive deletion of Files "Shutil.rmtree (path[, ignore_errors[, onerror])"

Import shutilshutil.rmtree (' E:\python-project\\a ')

　　

9, recursive moving files, similar to the MV Command, is actually renamed "Shutil.move (SRC, DST)"

Import shutilshutil.move (' E:\python-project\\f5.txt ', ' E:\python-project\\f6.txt ')

　　

10. Processing of compressed packets "shutil.make_archive (base_name, Format,...) 】

Create a compressed package and return the file path, for example: Zip, tar

Base_name: The file name of the compressed package, or the path to the compressed package. Only the file name is saved to the current directory, otherwise saved to the specified path,

For example: www + = Save to Current path

such as:/users/wupeiqi/www = Save to/users/wupeiqi/

Format: Compressed package type, "Zip", "tar", "Bztar", "Gztar"

Root_dir: Folder path to compress (default current directory)

Owner: User, default Current user

Group: Groups, default current group

Logger: Used to log logs, usually logging. Logger Object

Example: Packaging an ATM directory under E:\python-project to Ff.zip in the E:\python-project directory

Import shutilshutil.make_archive (' E:\python-project\\ff ', ' zip ', ' E:\python-project\Atm ')

　　

11, Shutil processing of the compression package is done by calling ZipFile and Tarfile two modules.

(1) ZipFile compression decompression (compress the specified file)

Packaged:

Import zipfilez= ZipFile. ZipFile (' E:\python-project\\a.zip ', ' W ') z.write (' E:\python-project\\f6.txt ') z.write (' E:\python-project\\f1.txt ') ) Z.close ()

　　

Extract:

z = zipfile. ZipFile (' E:\python-project\\a.zip ', ' R ') Z.extractall () Z.close ()

　　

(2) Tarfile compression decompression

Packaged:

Import Tarfiletar = Tarfile.open (' E:\python-project\\b.zip ', ' W ') tar.add (' E:\python-project\\f4.txt ') tar.add (' E:\ Python-project\\f2.txt ') Tar.close ()

　　

Extract:

tar = Tarfile.open (' E:\python-project\\b.zip ', ' R ') Tar.extractall () Tar.close ()

　　

Python built-in module (shutil)--034