在python中压缩二进制文件

时间:2012-07-05 06:20:14

标签: python zip

我想在zip文件中包含二进制文件,下面是代码片段: 我首先将zip内容解压缩到一个临时位置,然后添加更多文件并将其压缩回新的存档。

import zipfile

def test(fileName, tempDir):
    # unzip the file contents,may contain binary files
    myZipFile=zipfile.ZipFile(fileName,'r')
    for name in myZipFile.namelist(): 
        toFile = tempDir + '/' + name
        fd = open(toFile, "w")
        fd.write(myZipFile.read(name))
        fd.close()
    myZipFile.close()
    # code which post processes few of the files goes here

    #zip it back
    newZip = zipfile.ZipFile(fileName, mode='w')
    try:
        fileList = os.listdir(tempDir)
        for name in fileList:
            name = tempDir + '/' + name
            newZip.write(name,os.path.basename(name))
        newZip.close()
    except Exception:
            print 'Exception occured while writing to PAR file: ' + fileName    

某些文件可能是二进制文件。压缩代码工作正常但是当我尝试使用linux的unzip或python的zip模块解压缩时,我得到以下错误:

  

zipfile损坏。 (请检查您是否已转让或   以适当的BINARY模式创建了zip文件   编译正确解压缩)

我正在使用python 2.3

这里出了什么问题?

2 个答案:

答案 0 :(得分:2)

你可能想要升级,因为Python 2.3真的已经过时了。 2.7.3是2.x版本中的最新版本和最新版本的3.2.3版本。

请参阅docs.python.org

 |  extractall(self, path=None, members=None, pwd=None)
 |      Extract all members from the archive to the current working
 |      directory. `path' specifies a different directory to extract to.
 |      `members' is optional and must be a subset of the list returned
 |      by namelist().

(2.6版中的新功能)

看看Zip a folder and its content

您可能也对distutlis.archive_util感兴趣。

答案 1 :(得分:2)

嗯,不确定它是否是python 2.3中的一个错误。当前的工作环境不允许我升级到更高版本的python :-( :-(: - (

以下解决方法有效:

import zipfile

def test(fileName, tempDir):
    # unzip the file contents,may contain binary files
    myZipFile=zipfile.ZipFile(fileName,'r')
    for name in myZipFile.namelist(): 
        toFile = tempDir + '/' + name

        # check if the file is a binary file
        #if binary file, open it in "wb" mode
            fd = open(toFile, "wb")
        #else open in just "w" mode
            fd = open(toFile, "w")

        fd.write(myZipFile.read(name))
        fd.close()
    myZipFile.close()
    # code which post processes few of the files goes here

    #zip it back
    newZip = zipfile.ZipFile(fileName, mode='w')
    try:
        fileList = os.listdir(tempDir)
        for name in fileList:
            name = tempDir + '/' + name
            newZip.write(name,os.path.basename(name))
        newZip.close()
    except Exception:
            print 'Exception occured while writing to PAR file: ' + fileName