What is the Python equivalent of java.util.zip.Inflater?

Question

I have a Java program that opens a socket connection to a server that streams Zip compressed data. I read(bytebuffer) from the stream, setInput(bytebuffer) on the zip object, and inflate(outputbuffer) to get my uncompressed data.

What would be the equivalent in python?

Here is the java code:

byte[] compressedBytes = new byte[1024];
int bytesRead = inputStream.read(compressedBytes);
zip.setInput(compressedBytes, 0, bytesRead);
zip.inflate(uncompressedBytes, 0, 1024);

Or, to summarize, I need a streaming inflate (not file based) zip option for python.

An interesting take, and similar question: stackoverflow.com/questions/25116/binary-buffer-in-python — Wayne Werner
– Wayne Werner, Commented Jun 23, 2010 at 16:55

David Harks · Accepted Answer · 2010-06-23 16:57:57Z

1

You're looking for the zlib module. java.util.zip is actually an implementation using zlib, not Zip(aka PKZIP).

answered Jun 23, 2010 at 16:57

David Harks

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1 Comment

abendigo Over a year ago

Thanks! This has got me almost all the way there. Now, I'm having an issue with calling decompress in a loop.

Duncan · Accepted Answer · 2010-06-23 16:57:15Z

1

Have a look at zlib.decompressobj(). I think that should give you what you want. See http://docs.python.org/library/zlib.html

answered Jun 23, 2010 at 16:57

Duncan

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