#6391: libGAP! -- create a Cython library interface to gap
---------------------------+------------------------------------------------
Reporter: was | Owner: was
Type: enhancement | Status: new
Priority: major | Milestone: sage-4.4
Component: interfaces | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
---------------------------+------------------------------------------------
Comment(by davidm):
I get an error when importing libgap on sage 4.3.5 on OSX 10.6.3:
{{{
sage: import sage.libs.gap.gap
---------------------------------------------------------------------------
AttributeError Traceback (most recent call
last)
/Users/ayeq/sage-devel/<ipython console> in <module>()
/Users/ayeq/sage-devel/gap.pyx in init sage.libs.gap.gap
(sage/libs/gap/gap.c:6286)()
/Users/ayeq/sage-devel/local/lib/python2.6/site-
packages/sage/misc/cachefunc.pyc in __init__(self, f, classmethod)
54
55 """
---> 56 self._common_init(f,
ArgumentFixer(f,classmethod=classmethod))
57 self.cache = {}
58
/Users/ayeq/sage-devel/local/lib/python2.6/site-
packages/sage/misc/function_mangling.pyc in __init__(self, f, classmethod)
107 """
108
--> 109 defaults = f.func_defaults
110 if defaults is None:
111 defaults = []
AttributeError: 'builtin_function_or_method' object has no attribute
'func_defaults'
}}}
The cached_function decorator works at the interpreter level so I really
do not see what is happening. When the line is removed the import works
fine and from what I understand about cache_function this should be okay.
{{{
--- a/sage/libs/gap/gap.pyx Sat Jun 27 05:49:14 2009 +0200
+++ b/sage/libs/gap/gap.pyx Sat Apr 10 16:30:27 2010 -0700
@@ -71,8 +71,8 @@
from sage.structure.element cimport ModuleElement, RingElement
-from sage.misc.cachefunc import cached_function
-...@cached_function
+#from sage.misc.cachefunc import cached_function
+...@cached_function
def gap_root():
"""
Find the location of the GAP root install which is stored in the gap
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6391#comment:14>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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