On Wed, Jun 2, 2010 at 10:39 AM, Robert Bradshaw
<rober...@math.washington.edu> wrote:
> On Jun 2, 2010, at 4:42 AM, Ralf Hemmecke wrote:
>
>>>> today, running "./sage -t filename" did not succeed on my system. After
>>>> a while, I could figure out with some help of Burcin that my setup of
>>>> sage was too much using symbolic links. In fact, after I removed "sage"
>>>> from being available via PATH, the above command succeeded.
>>
>>> Could you elaborate?
>>
>> Can you tell me what you need? If I invest any time in figuring out a
>> proper bug description, I'll probably find and fix the bug myself.

That doesn't sound like a bad outcome :-)

>
> I was just wondering if there was a clear way to reproduce it, but it sounds
> like something more subtle.
>
>> The problem is that with every call of sage (and sub-scripts) sage tries
>> to figure out what SAGE_ROOT is. I haven't set SAGE_ROOT. (Why should I
>> clutter up my environment? I expect sage to work properly without
>> setting SAGE_ROOT.)
>

If Sage is properly installed, it will.


>> I consider this behaviour of sage wrong by design,
>> so I wrote a SEP. But that's just me and so I'll shut up.
>
>
> I think it's useful to have a *single* entry point where SAGE_ROOT (and
> SAGE_LOCAL, etc.) are all resolved and defined, as well as all paths and
> other necessary bits, and from there on the sub-scripts don't have to worry
> about it. If this is being figured out in multiple places, I see that as a
> problem too.

This is also important to being able to move an installed copy of Sage.

 -- William

>
> - Robert
>
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-- 
William Stein
Professor of Mathematics
University of Washington
http://wstein.org

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