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Re: python: mixing sitearch and sitelib (was: python noarch vs arch)



On Sat, 2006-09-02 at 17:23 +0200, Axel Thimm wrote:
> On Sat, Sep 02, 2006 at 11:09:22AM -0400, Jesse Keating wrote:
> > > On Sat, Sep 02, 2006 at 10:48:11AM -0400, Jesse Keating wrote:
> > > > Due to the way that python works, if any part of a python's
> > > > module is arch specific (sitearch), the entire thing has to go
> > > > into sitearch.  Python will not import part from sitearch and
> > > > part from sitelib.  So it'd all have to go in sitearch.
> >
[snip]
>  
> > If you have a module, importable module that is, has an __init.py__ and
> > all that, if you shove part of it in sitearch and part of it in sitelib,
> > it won't work.  Is this statement wrong?  If so, please do explain.
> 
> You mean just the way python-elementtree (and thus yum) works exactly
> that way since FC3?
> 
> Yes, that statement is wrong, just log onto a multilib system and
> check ownership of parts of sitelib. For example on FC5/x86_64:
> 
> # rpm -qf --qf '%{n}-%{v}-%{r}.%{arch}.rpm\n' /usr/lib/python2.4/site-packages/* | uniq | grep x86_64

None of your examples violate what Jesse is saying, although they may
need some explanation:

> aqbanking-1.8.1beta-3.1.x86_64.rpm
  - The python portion of this exists entirely in sitelib.  There's no
mixing of sitelib and sitearch.

> audit-libs-python-1.1.5-1.x86_64.rpm
  - There are two separate modules in this one.  audit and _audit.  They
exist at the toplevel: %{sitelib}/audit.py and %{sitearch}/_audit.so.
The _audit.so portion is referenced by the audit.py portion but it is
not the same.  If the modules were structured like this:
  %{sitelib}/audit/{__init__.py,audit.py}
  %{sitearch}/audit/{__init.py,_audit.so}
then the modules would conflict and current python will find only one of
them. [1]_

> avahi-tools-0.6.10-1.FC5.x86_64.rpm
  - Exists entirely in sitelib.

> python-elementtree-1.2.6-4.2.1.x86_64.rpm
  - Two separate modules: elementree in sitelib and  cElementTree in
sitearch.  Same as audit-libs-python.

> wireshark-0.99.2-fc5.2.x86_64.rpm
  - Exists entirely in sitelib.

[1]_: Python-dev thread explaining this:
http://mail.python.org/pipermail/python-dev/2006-March/062462.html

-Toshio

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