python shutil file (folder) copy, delete, move, compress and decompress

Senior files, folders, archive processing module

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

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

shutil.copyfile (src, dst)
copies of documents

shutil.copyfile ( 'f1.log', 'f2.log') # destination file need not exist

shutil.copymode (src, dst)
only copy rights. Content, groups, users remain unchanged

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

shutil.copystat (src, dst)
only copy status information, comprising: mode bits, atime, mtime, flags

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

shutil.copy (src, dst)
to copy files and permissions

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

shutil.copy2 (src, dst)
copy files and status information

shutil import 
shutil.copy2 ( 'f1.log', 'f2.log')

shutil.ignore_patterns (* Patterns)
shutil.copytree (the src, DST, symlinks = False, the ignore = None)
recursively copied to the folder

shutil Import 
shutil.copytree ( 'folder1', 'folder2', the ignore = shutil.ignore_patterns ( '*. pyc', 'tmp *')) # can not exist in the destination directory, attention to folder2 directory parent directory must be writable , ignore mean exclusion

import shutil

shutil.copytree('f1', 'f2', symlinks=True, ignore=shutil.ignore_patterns('*.pyc', 'tmp*'))

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

shutil import 
shutil.rmtree ( 'folder1')

shutil.move (src, dst)
recursively to move a file, which is similar mv command, in fact, renamed.

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

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

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

base_name: archive file name, it can be compressed path. Just when the file name is saved to the current directory, or saved to a specified location,
such as data_bak => Save to the current path
, such as: / tmp / data_bak => Save to / tmp /
format: compressed packet type, "zip", "tar "," bztar "," gztar "
ROOT_DIR: to compress folder path (current default directory)
owner: the user, the default current user
group: group, default current set
logger: for logging, the object is usually logging.Logger

# The file in / data packaging program placed the current directory 
Import the shutil 
RET = shutil.make_archive ( " data_bak " , ' gztar ' , ROOT_DIR = ' / data ' ) 
  
  
# file in / data package placement / tmp / directory 
Import the shutil 
RET = shutil.make_archive ( " / tmp / data_bak " , ' gztar ' , ROOT_DIR = ' / Data ' )

shutil compressed packet is processed and call ZipFile TarFile two modules to carry out, in detail:

zipfile compression and decompression


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()

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 ( '/ the')
>>> t.close()