python標準庫之zipfile__python

python標準庫zipfile

什麼是zip檔案?為何在網路上zip打包的檔案比較常見。而不是rar?

zip是一種壓縮歸檔的檔案，zip開源的。

python的zipfile模組，有兩個主要的類
ZipFile()

函數，判斷是否為zip類型檔案

zipfile. is_zipfile ( filename )

Returns True if filename is a valid ZIP file based on its magic number,otherwise returns False. filename may be a file or file-like object too
直接從壓縮檔中讀取檔案內容
ZipFile. read ( name [, pwd ] ) # 實際上調用了self.open().read()

Return the bytes of the file name in the archive. name is the name of thefile in the archive
ZipFile. open ( name [, mode [, pwd ] ] )

Extract a member from the archive as a file-like object (ZipExtFile)
ZipFile. close ( )

Close the archive file. You must call close() before exiting your programor essential records will not be written. ZipInfo()

# 壓縮到指定檔案def file_zip(src, dst):    zip_obj = ZipFile(dst, mode='w')    zip_obj.write(src)    zip_obj.close() # 解壓縮def unzip(src):    zip_obj = ZipFile(src, mode='r')    for info in zip_obj.filelist:        zip_obj.extract(member=info)    zip_obj.close()

zipfile的命令列介面

Usage:    zipfile.py -l zipfile.zip        # Show listing of a zipfile    zipfile.py -t zipfile.zip        # Test if a zipfile is valid    zipfile.py -e zipfile.zip target # Extract zipfile into target dir    zipfile.py -c zipfile.zip src ... # Create zipfile from sources

-c Create

-e Extract(提取)

-l List