A way to specify offset/length when compressing and uncompressing

[bgedik]

If I want to compress or uncompress only a view of my string/data, I don't see a way to do that without creating a copy. Do you think this can be added.

[martindurant]

Have you considered using memoryview as a pure-python way to implement this?

[bgedik]

Yes. It gives the following error: exceptions.TypeError: must be string or read-only buffer, not memoryview

[martindurant]

I see, sorry to hear that.
Ideally it ought to work with memoryviews, but I see that the code is written in a pretty py2 kind of style.
Allowing an offset parameter doesn't sound too hard to implement, but I don't quite know how, I didn't write the original code. Perhaps an extra parameter to here?