#16243: enable using GAP to compute galois_group
---------------------------------+------------------------
Reporter: dimpase | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.2
Component: number fields | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
---------------------------------+------------------------
Comment (by dimpase):
there is an old bug on the line 4377 of
`sage/rings/number_field/number_field.py`
{{{
$ git annotate -L 4377,4377 src/sage/rings/number_field/number_field.py
f46355fc ( mabshoff 2008-11-22 19:03:57 -0800 4377)
sage: NumberField(x^3 + 2*x + 1, 'a').galois_group(pari_group=False) #
optional - database_gap
}}}
and here is the error:
{{{
$ sage -bt --optional=sage,database_gap
src/sage/rings/number_field/number_field.py
...
sage -t src/sage/rings/number_field/number_field.py
**********************************************************************
File "src/sage/rings/number_field/number_field.py", line 4377, in
sage.rings.number_field.number_field.NumberField_generic.galois_group
Failed example:
NumberField(x^3 + 2*x + 1, 'a').galois_group(pari_group=False) #
optional - database_gap
Exception raised:
Traceback (most recent call last):
File "/usr/local/src/sage/sage/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 480, in _run
self.execute(example, compiled, test.globs)
File "/usr/local/src/sage/sage/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 839, in execute
exec compiled in globs
File "<doctest
sage.rings.number_field.number_field.NumberField_generic.galois_group[13]>",
line 1, in <module>
NumberField(x**Integer(3) + Integer(2)*x + Integer(1),
'a').galois_group(pari_group=False) # optional - database_gap
File "cachefunc.pyx", line 1591, in
sage.misc.cachefunc.CachedMethodCaller.__call__
(sage/misc/cachefunc.c:9194)
File "cachefunc.pyx", line 2191, in
sage.misc.cachefunc.CachedMethod._instance_call
(sage/misc/cachefunc.c:11887)
TypeError: galois_group() got an unexpected keyword argument
'pari_group'
**********************************************************************
1 item had failures:
1 of 20 in
sage.rings.number_field.number_field.NumberField_generic.galois_group
[1666 tests, 1 failure, 36.82 s]
----------------------------------------------------------------------
sage -t src/sage/rings/number_field/number_field.py # 1 doctest failed
----------------------------------------------------------------------
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/16243#comment:3>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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