Re: [Xen-devel] Why do we use /usr/lib/python to install python libraries?

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 9 Jun 2006, at 03:00, Anthony Liguori wrote:

> Mark Williamson wrote:
> > > This seems exceptionally evil and is definitely a PITA.  What was the
> > > original problem that led us to do this?  I'd like to take a stab at
> > > correcting it so we can have a more sane installation.
> > I thought it involved some pain early one with supporting different 
> > Python versions in different distros?  Maybe with the binary 
> > installer?
> > Of course I could be talking bunk - it's been like that for a 
> > loooooong time and my memory was better when I was younger ;-)
> Yeah, this is why I asked.  I have vague recollections of this 
> discussion too but can't remember the exact reasons.  I'm hoping that 
> we've gotten smarter since then and can find a better solution :-)
To be able to install on a machine different from the one we built on. 
Because our distribution method is to 'python install' into a dist/ 
subdirectory and then basically blat that directory into / on the 
target machine. It would probably be smarter to include python scripts 
to be able to 'python install' out of dist/ -- it'd require us to have 
python-devel and C compiler installed on the target box though.
Ultimately the argument was that distros should install in their usual 
place because they *know* what python version they ship, but that since 
we didn't we'd just install in /usr/lib/python because that required 
least thought for maximum coverage. :-)
 -- Keir


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