[Python-Dev] PEP 441 - Improving Python ZIP Application Support (original) (raw)

Glenn Linderman v+python at g.nevcal.com
Wed Feb 18 00:29:34 CET 2015

On 2/17/2015 1:40 PM, Barry Warsaw wrote:

I agree, for deployment to environments where you can guarantee that the basic Python infrastructure is available. It may not be though, and perhaps we can relegate that to py2exe, cxfreeze, and friends, although I would say that having such support built into Python would be very cool, and of high value to our users.

That's not to play down the usefulness of good executable zip support, pared of the stdlib and interpreter. OTOH, it would be nice to think ahead, where the same tool could generate both types of single-file executables.

Thinking ahead? Novel idea! My dream scheme...

A scheme for putting all the pure- Python modules (mostly user code) into a .pyz, and a concurrent scheme for putting all the non-pure- Python modules (maybe even Python itself, for platforms that are missing the necessary version of Python 3), into some other platform-dependent bundle.

User instructions then become... try the .pyz, if it doesn't work, install the platform-dependent bundle and then it will.

So one could build up a platform-dependent bundle that contains all stuff used in development of various projects, and have easy user instructions for deployment of various .pyz apps.

Longer instructions for people that think they know what they are doing would list the version of Python and the versions of the various dependencies in the platform-dependent bundle, if they wish to install them manually, etc.

I suppose licensing might, in some cases, conflict with making a single bundle for some modules and platforms.

I'm already doing the .pyz apps, using .py extensions, but don't have the other piece in place.... it's harder, and I haven't acquired the skill set for putting the binary chunks together... other than unzipping to the filesystem.

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