从python执行时如何打印和捕获7zip的%进度标记? [英] How to print and capture 7zip's % progress markers when executing from python?

问题描述

当 7zip 从命令行运行时，它将使用一系列%"符号打印一个进度条.

我想在从 Python 中执行 7zip 时捕获并打印此进度条.我该怎么做?

我目前使用的 Python 代码:

from subprocess import Popen, PIPEpipe = Popen('7za.exe a -tgzip "e:\backup\sch Testerr 2012 06 23 17-27.gzip" "E:/archiv"' , stdout=PIPE)文本 = pipe.communicate()[0]打印文本

解决方案

我发现 7za 在重定向 stdout 时会抑制进度输出.
所以，我写了一个补丁.
'sopg' 选项即使在 stdout 被重定向或管道传输时也能启用进度输出.https://github.com/photom/p7zip/commit/2baacd6c354fbde19ebc83d185e73f6d9bd62517">

$ 7za x -sopg ..7z

When 7zip runs from the command line, it will print a progress bar using a series of '%' symbols.

I'd like to both capture and print this progress bar when executing 7zip from within Python. How do I do this?

The Python code I'm currently using:

from subprocess import Popen, PIPE
pipe = Popen('7za.exe a -tgzip "e:\backup\sch Testerr 2012 06 23 17-27.gzip" "E:/archiv"' , stdout=PIPE)
text = pipe.communicate()[0]
print text

解决方案

I found 7za suppress progress output when stdout is redirected.
So, I wrote a patch.
'sopg' option enables progress output even when stdout is redirected or piped. https://github.com/photom/p7zip/commit/2baacd6c354fbde19ebc83d185e73f6d9bd62517

$ 7za x -sopg ..7z

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