shutil

Advanced file, folder, compressed package processing module

　　1. shutil.copyfileobj(fsrc, fdst[, length]) Copy the contents of the file to another file

import shutil
shutil.copyfileobj(open('old.xml','r'), open('new.xml', 'w'))

　　2. shutil.copyfile(src, dst) copy file

shutil.copyfile( ' f1.log ' , ' f2.log ' ) #The target file does not need to exist

　　3. shutil.copymode(src, dst) only copy permissions. Contents, groups, users remain unchanged

shutil.copymode( ' f1.log ' , ' f2.log ' ) #The target file must exist

　　4. shutil.copystat(src, dst) only copies status information, including: mode bits, atime, mtime, flags

shutil.copystat( ' f1.log ' , ' f2.log ' ) #The target file must exist

　　5. shutil.copy(src, dst) Copy files and permissions

import shutil
shutil.copy( ' f1.log ' , ' f2.log ' )

　　6. shutil.ignore_patterns(*patterns)
　　shutil.copytree(src, dst, symlinks=False, ignore=None)
　　recursively copy folders

import shutil
shutil.copytree( ' folder1 ' , ' folder2 ' , ignore=shutil.ignore_patterns( ' *.pyc ' , ' tmp* ' )) #The target directory cannot exist. Note that the parent directory of the folder2 directory must have writable permissions, ignore means to exclude

　　7. shutil.rmtree(path[, ignore_errors[, onerror]]) recursively delete files

import shutil
shutil.rmtree( ' folder1 ' )

　　8. shutil.move(src, dst) moves files recursively. It is similar to the mv command, but it is actually renaming.

import shutil
shutil.move('folder1', 'folder3')

　　9、shutil.make_archive(base_name, format,...)

　　　　Create a compressed package and return the file path, such as: zip, tar
　　　　Create a compressed package and return the file path, such as: zip, tar

base_name: The file name of the compressed package, or the path of the compressed package. If it is only the file name, it will be saved to the current directory, otherwise it will be saved to the specified path.

　　Such as data_bak => save to the current path
　　such as: /tmp/data_bak => save to /tmp/

format: the type of compressed package, "zip", "tar", "bztar", "gztar"
root_dir: Folder path to be compressed (default current directory)
owner: user, default current user
group: group, default current group
logger: used to record logs, usually a logging.Logger object

#Package the files under /data and place them in the current program directory 
import shutil
ret = shutil.make_archive("data_bak", 'gztar', root_dir='/data')

#Package the files under /data and place them in the /tmp/ directory 
import shutil
ret = shutil.make_archive("/tmp/data_bak", 'gztar', root_dir='/data')

　　10. The processing of the compressed package by shutil is carried out by calling two modules: ZipFile and TarFile. Details:

　　*zipfile compress & decompress

import zipfile

# 压缩
z = zipfile.ZipFile('laxi.zip', 'w')
z.write('a.log')
z.write('data.data')
z.close()

# 解压
z = zipfile.ZipFile('laxi.zip', 'r')
z.extractall(path='.')
z.close()

　　*tarfile compression & decompression

import tarfile

# 压缩
>>> t=tarfile.open('/tmp/egon.tar','w')
>>> t.add('/test1/a.py',arcname='a.bak')
>>> t.add('/test1/b.py',arcname='b.bak')
>>> t.close()

# 解压
>>> t=tarfile.open('/tmp/egon.tar','r')
>>> t.extractall('/egon')
>>> t.close(

Guess you like