There’s no way to do that with python zipfile module. You have to create a new zip file and recompress everything again from the first file, plus the new modified file. Below is some code to do just that. But note that it isn’t efficient, since it decompresses and then recompresses all data. import tempfile … Read more
I found the—in hindsight, obvious—error in my code. The ZipArchive has to be disposed to make it write its content to its underlying stream. So I had to save the stream to a file after the end of the using block of the ZipArchive. And it was important to set the leaveOpen argument of its … Read more
For the ZipArchive class to be present, PHP needs to have the zip extension installed. See this page for installation instructions (both Linux and Windows).