#3970: [with patch, needs review] MaximaElements should not coerce into SR.
----------------------+-----------------------------------------------------
Reporter: mhansen | Owner: burcin
Type: defect | Status: new
Priority: minor | Milestone: sage-4.1.3
Component: calculus | Keywords:
Reviewer: | Author: Mike Hansen
Merged: |
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Comment(by awebb):
I get an error with sage -t -long sage/symbolic/ring.pyx. I am not sure
that I understand the patch as it seems to apply for both maxima and pari.
Is this by intention?
{{{
sage -t -long "devel/sage-myver/sage/symbolic/ring.pyx"
**********************************************************************
File "/home/adamwebb/local/sage/devel/sage-myver/sage/symbolic/ring.pyx",
line 97:
sage: SR.coerce(pari(2/5))
Exception raised:
Traceback (most recent call last):
File "/home/adamwebb/local/sage/local/bin/ncadoctest.py", line 1231,
in run_one_test
self.run_one_example(test, example, filename, compileflags)
File "/home/adamwebb/local/sage/local/bin/sagedoctest.py", line 38,
in run_one_example
OrigDocTestRunner.run_one_example(self, test, example, filename,
compileflags)
File "/home/adamwebb/local/sage/local/bin/ncadoctest.py", line 1172,
in run_one_example
compileflags, 1) in test.globs
File "<doctest __main__.example_7[3]>", line 1, in <module>
SR.coerce(pari(Integer(2)/Integer(5)))###line 97:
sage: SR.coerce(pari(2/5))
File "parent.pyx", line 402, in sage.structure.parent.Parent.coerce
(sage/structure/parent.c:4859)
File "parent.pyx", line 429, in sage.structure.parent.Parent.coerce
(sage/structure/parent.c:4806)
TypeError: no canonical coercion from Interface to the PARI C library
to Symbolic Ring
**********************************************************************
1 items had failures:
1 of 12 in __main__.example_7
***Test Failed*** 1 failures.
}}}
if I put back the Pari stuff:
{{{
from sage.libs.pari.gen import PariInstance
elif isinstance(R, (PariInstance)):
return True
}}}
Then everything works.
Cheers,
Adam
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/3970#comment:6>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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