通过 SFTP 从远程服务器读取 GZIP 文本文件

Question

我在远程服务器上有许多大型文本文件，我想在不以编程方式解压缩的情况下阅读它们

我具有从远程服务器读取非 GZIP 文本文件以及在本地读取 GZIP 文本文件的功能。我不确定如何将两者结合起来，或者是否可能

以下是单独工作的代码：

from contextlib import closing
from fabric.network import connect
from fabric import state
import gzip

# This successfully reads a non-GZIP text file from user@host:filePath
with closing(connect("user", "host", "port", None)) as ssh:
    with closing(ssh.open_sftp()) as sftp:
        with closing(sftp.open("filePath")) as f:
            for line in f:
                print line

# This successfully reads a GZIP text file locally
with gzip.open("fileName", "r") as f:
    for line in f:
        print line

Answer 1

然而，尚未测试，您可以将您获得的文件处理程序f 传递给gzip.GzipFile，如下所示：

with closing(connect("user", "host", "port", None)) as ssh:
    with closing(ssh.open_sftp()) as sftp:
        with closing(sftp.open("filePath")) as f:
            with gzip.GzipFile(mode='rb', fileobj=f) as fin:
                for line in fin:
                    print line