Oops, well for those who don't want to download the attachment here's
the pastebin link: http://pastebin.com/z1x00AEa

-Jim

On Tue, Jan 31, 2012 at 5:26 PM, William Stein <[email protected]> wrote:
> 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
>
> --
> To post to this group, send email to [email protected]
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-- 
Die Dunkelheit... leitet die Musik.
Die Musik... leitet die Seele.

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