On Tue, Jan 31, 2012 at 5:18 PM, Starx <[email protected]> wrote:
>>Please make your code available. [...] It depends on the code...
>
> I hesitated to do this at first because it's a rather large amount of
> code, but as you requested I've attached the file.  It goes in the
> sage/modules folder.

Oh, regarding "large code", the typical thing people do is post it to
a site like http://pastebin.com/ then post a *link* in the email.

>
>> Do you mean that there were errors when you ran manually but not when you
>> did "sage -t ..."?  That's strange.
>
> Yep, in fact the example code at line 929:
>
> sage: h = P.get_space(1).hom(0, P.get_space(2))
>
> produces an error because I guess the hom function was changed in 4.8
> and will no longer accept the integer 0 as input for creating a zero
> map.  Easy to fix, but the doctest doesn't catch it.
>
>> Try running 'sage -t --verbose ....' to see exactly where the error arises.
>> That might help.
>
> This does help narrow it down.  The following code will crash sage:
>
> sage: from sage.modules.quiver_module import Quiver
> sage: Q = Quiver({1:{2:['a']}})
> sage: P = Q.P(GF(3), 1)
> sage: R = P.radical()
> sage: P.quotient(R)
>
> The quotient function basically takes a bun of vector space quotients
> and passes some homomorphisms to those quotients.  I couldn't come up
> with a smaller example that makes it crash though, if I play around
> with vector spaces and their quotients everything in sage seems fine.
>
> -Jim
>
> On Tue, Jan 31, 2012 at 4:17 PM, John H Palmieri <[email protected]> 
> wrote:
>>
>>
>> On Tuesday, January 31, 2012 3:17:51 PM UTC-8, JStarx wrote:
>>>
>>> Hi, I am running OS X 10.6.8 and I just upgraded to 4.8 from 4.7.2.
>>> Some code I've been working on all of a sudden started failing it's
>>> doctests.  Most of the failures have been easy to track down and fix,
>>> I only have one left to go but it's stumped me:
>>>
>>> d-69-91-134-166:sage-main Starx$ sage -t sage/modules/quiver_module.py
>>> sage -t  "devel/sage-main/sage/modules/quiver_module.py"
>>> lda must be >= MAX(N,1): lda=0 N=0Parameter 7 to routine cblas_sgemv
>>> was incorrect
>>> Mac OS BLAS parameter error in cblas_sgemv, parameter #0, (unavailable),
>>> is 0
>>>
>>>          [2.7 s]
>>>
>>> ----------------------------------------------------------------------
>>> The following tests failed:
>>>
>>>
>>>         sage -t  "devel/sage-main/sage/modules/quiver_module.py"
>>
>> Try running 'sage -t --verbose ....' to see exactly where the error arises.
>> That might help.
>>
>>
>>
>>> I tried going into sage and running some of the code from my doctests
>>> manually and even though the above is the only error from the doctest
>>> some of the doctest code still produces errors, so does that mean this
>>> is an error with the doctester itself?
>>
>> Do you mean that there were errors when you ran manually but not when you
>> did "sage -t ..."?  That's strange.  Do you have it on a laptop?  Come by my
>> office some time and show me what's going on.
>>
>> --
>> John
>>
>> --
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>
>
>
> --
> Die Dunkelheit... leitet die Musik.
> Die Musik... leitet die Seele.
>
> --
> To post to this group, send email to [email protected]
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-- 
William Stein
Professor of Mathematics
University of Washington
http://wstein.org

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