Groups > linux.debian.maint.python > #11974

Re: Python module packages that don't bytecompile on installation?

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From	Matthias Klose <doko@debian.org>
Newsgroups	linux.debian.maint.python
Subject	Re: Python module packages that don't bytecompile on installation?
Date	Sat, 02 Nov 2019 11:10:01 +0100
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On 02.11.19 04:22, Paul Wise wrote:
> Hi all,
> 
> I run adequate on my system, which means I notice when Python module
> packages don't bytecompile when they are installed. So far I've just
> been ignoring the warnings that adequate prints.
> 
> https://salsa.debian.org/debian/adequate
> 
> In addition I noticed:
> 
>   * some Python modules on my system weren't bytecompiled but did
>     bytecompile when I reinstalled them (blinker for example)
>   * many of the Python modules on my system don't bytecompile their test
>     directories (django for example)
>   * relatively few packages I have installed don't bytecompile when I
>     ignore test paths (lib2to3, tk, uno, distutils)
> 
> Some questions:
> 
> Should all module packages bytecompile?

At this point I'd ignore any Python2 related package, and concentrate on Python3 
stuff only.

> Should all module packages bytecompile all their directories?
> 
> What are the downsides when module packages don't bytecompile?
> 
> What are the downsides when module packages do bytecompile?

Byte compilation is an optimization, speeding up a program start if 
byte-compiled files are ready.  Packages are smaller without bc, take a bit 
longer to install.  I think nobody is asking the question if .py files should be 
dropped in favor of .pyc files.

> Do we need a lintian complaint about this issue?
> 
> Do we need any improvements in how module packages bytecompile?
> For example using triggers instead of postinst scriptlets.
> 
> Any other thoughts?

I'd say, there are currently more pressing issues than that, like the Python2 
removal, or the introduction of Python 3.8.  3.8 also offers a central directory 
for bc files, so that's maybe another thing to look at, but not a priority now 
from my point of view.

Matthias

Thread

Python module packages that don't bytecompile on installation? Paul Wise <pabs@debian.org> - 2019-11-02 04:30 +0100
  Re: Python module packages that don't bytecompile on installation? Matthias Klose <doko@debian.org> - 2019-11-02 11:10 +0100
    Re: Python module packages that don't bytecompile on installation? Paul Wise <pabs@debian.org> - 2019-11-03 02:30 +0100
      Re: Python module packages that don't bytecompile on installation? Matthias Klose <doko@debian.org> - 2019-11-03 10:30 +0100
      Re: Python module packages that don't bytecompile on installation? Ansgar <ansgar@43-1.org> - 2019-11-04 09:10 +0100

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