Re: [Numpy-discussion] Numpy and the old scipy

[Andrew S. <str...@as...>]

Python eggs also support runtime version selection. It's possible we may
need to backport egg support to old scipy, but it already works great with
new numpy/scipy. I'd suggest this over re-implementing another wheel.

> Travis Oliphant wrote:
>
>> In order to install new and old scipy you will definitely need to
>> install one of them to another location besides site-packages (probably
>> new scipy).
>> Then you will need to make sure your sys.path is set up properly to find
>> the scipy you are interested in using for that session.
>
> It sounds like SciPy could use a versioning scheme much like wxPythons:
>
> import wxversion
> wxversion.select("2.6")
> import wx
>
> See:
>
> http://wiki.wxpython.org/index.cgi/MultiVersionInstalls
>
>
> In fact, you could probably just grab the wxPython code and tweek it a
> little for SciPy.
>
> This was debated a lot on the wxPython lists before being implemented.
> After all you could "Just" write a few start-up scripts that manipulate
>   PYTHONPATH, or re-name some directories, or put in a few sym links,
> or, or, or... Also, ideally wxPython major versions are compatible, etc,
> etc.
>
> However, when all was said and Dunn, this is a very nice system that
> works the same way on all platforms, and doesn't get in the way of
> anything. New versions get installed as the default, so if you never use
> wxversion, you never know it's there. If you do, then you can test new
> versions without having to break any old, running utilities, etc.
>
> Also, the infrastructure is in place for future major version changes,
> etc.
>
> -Chris
>
>
> --
> Christopher Barker, Ph.D.
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