如何仅使用 Python 将 tar.gz 文件转换为 zip? [英] How to convert tar.gz file to zip using Python only?

问题描述

有没有人有任何仅使用 Python 代码将 tar.gz 文件转换为 zip 的代码?正如 如何使用带有 gzip 压缩选项的 pandas read_csv 读取 tar.gz 文件?

Does anybody has any code for converting tar.gz file into zip using only Python code? I have been facing many issues with tar.gz as mentioned in the How can I read tar.gz file using pandas read_csv with gzip compression option?

推荐答案

你必须使用 tarfile 模块，读取模式为 'r|gz'.然后使用 zipfile 进行写入.

You would have to use the tarfile module, with mode 'r|gz' for reading. Then use zipfile for writing.

import tarfile, zipfile
tarf = tarfile.open( name='mytar.tar.gz', mode='r|gz' )
zipf = zipfile.ZipFile( file='myzip.zip', mode='a', compression=zipfile.ZIP_DEFLATED )
for m in tarf:
    f = tarf.extractfile( m )
    fl = f.read()
    fn = m.name
    zipf.writestr( fn, fl )
tarf.close()
zipf.close()

您可以使用 is_tarfile() 来检查有效的 tar 文件.

You can use is_tarfile() to check for a valid tar file.

也许你也可以使用 shutil，但我认为它不能在内存上工作.

Perhaps you could also use shutil, but I think it cannot work on memory.

PS:从我执行的简短测试来看，您可能会遇到目录成员 m 的问题.如果是这样，您可能必须使用 is_dir()，或者甚至首先使用 tarf.getmembers() 获取每个 tar 文件成员的信息，然后打开 tar.gz 文件用于传输到 zip，因为在 tarf.getmembers() 之后你不能这样做(你不能向后寻找).

PS: From the brief testing that I performed, you may have issues with members m which are directories. If so, you may have to use is_dir(), or even first get the info on each tar file member with tarf.getmembers(), and the open the tar.gz file for transferring to zip, since you cannot do it after tarf.getmembers() (you cannot seek backwards).

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