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python生成tar文件內(nèi)容的方法-創(chuàng)新互聯(lián)
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python生成tar文件內(nèi)容的方法？這個(gè)問題可能是我們?nèi)粘W(xué)習(xí)或工作經(jīng)常見到的。希望通過這個(gè)問題能讓你收獲頗深。下面是小編給大家?guī)淼膮⒖純?nèi)容，讓我們一起來看看吧！
tarfile包中的.open(name, mode)方法能夠以mode指定的方式打開name壓縮文件，并返回一個(gè)TarFile類對(duì)象。調(diào)用TarFile對(duì)象的extractall(path)方法可以將tar文檔解壓到path指定的位置。
import tarfile tar = tarfile.open( '*.tar.gz', mode = "r:gz") #"r:gz"表示 open for reading with gzip compression tar.extractall(path='temp') ### 將tar.gz文件解壓到temp文件夾下 tar.close()
open返回的對(duì)象不但可以用來讀文檔數(shù)據(jù)（'r': reading），還可以寫('w': writing)，附加('a': appending)。
如下是mode取值所對(duì)應(yīng)的含義：
'r' or 'r:*' open for reading with transparent compression 'r:' open for reading exclusively uncompressed 'r:gz' open for reading with gzip compression 'r:bz2' open for reading with bzip2 compression 'r:xz' open for reading with lzma compression 'a' or 'a:' open for appending, creating the file if necessary 'w' or 'w:' open for writing without compression 'w:gz' open for writing with gzip compression 'w:bz2' open for writing with bzip2 compression 'w:xz' open for writing with lzma compression 'x' or 'x:' create a tarfile exclusively without compression, raise an exception if the file is already created 'x:gz' create a gzip compressed tarfile, raise an exception if the file is already created 'x:bz2' create a bzip2 compressed tarfile, raise an exception if the file is already created 'x:xz' create an lzma compressed tarfile, raise an exception if the file is already created 'r|*' open a stream of tar blocks with transparent compression 'r|' open an uncompressed stream of tar blocks for reading 'r|gz' open a gzip compressed stream of tar blocks 'r|bz2' open a bzip2 compressed stream of tar blocks 'r|xz' open an lzma compressed stream of tar blocks 'w|' open an uncompressed stream for writing 'w|gz' open a gzip compressed stream for writing 'w|bz2' open a bzip2 compressed stream for writing 'w|xz' open an lzma compressed stream for writing
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