[Wheel-builders] [RFC] Use UPX to compress libraries in wheels?

[Nathaniel Smith]

I thought upx only works on executables, not shared libraries?

The pynativelib stuff could also significantly shrink our venvs compared to
the current situation.

-n
On Apr 20, 2016 2:14 AM, "Olivier Grisel" <olivier.grisel at ensta.org> wrote:

> This project seems interesting:
>
> http://upx.sourceforge.net/
>
> This could potentially reduce the size of our wheels significantly to
> both reduce bandwidth usage
> and speed up install times with pip. We could add an option to
> auditwheel repair to enable UPX compaction on the compiled extensions
> and the grafted libraries.
>
> Another benefit would be to reduce on-disk size of the typical
> virtualenv holding the full scipy stack.
> This can be important to deploy it in serverless environments such as
> AWS lambda which has size restrictions (50MB) for the hosted code. For
> instance see this blog post on this topic (it does not use UPX, only
> stripped binaries):
>
> https://serverlesscode.com/post/deploy-scikitlearn-on-lamba/
>
> Note that this second use case (venv compaction) could easily be
> addressed by a tool not related to wheels but I thought that using UPX
> upstream in the build & packaging process might be of general interest
> (primarily to save bandwidth and speedup installs).
>
> --
> Olivier
> http://twitter.com/ogrisel - http://github.com/ogrisel
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