Hi,
I am trying to write a subclass of the class of hypereliptic curves
over QQ, for example:
class test
(sage.schemes.hyperelliptic_curves.hyperelliptic_rational_field.HyperellipticCurve_rational_field):
def __init__(self,C):
self.C = C
then in sage I type
R.<x> = QQ[]
H = HyperellipticCurve(x^9+1)
test(H)
the last lline gives a long string of error traceback ending
...
/usr/local/sage/sage-4.2/local/lib/python/pprint.pyc in _safe_repr
(object, context, maxlevels, level)
318 return format % _commajoin(components), readable,
recursive
319
--> 320 rep = repr(object)
321 return rep, (rep and not rep.startswith('<')), False
322
/usr/local/sage/sage-4.2/local/lib/python2.6/site-packages/sage/
structure/sage_object.so in
sage.structure.sage_object.SageObject.__repr__ (sage/structure/
sage_object.c:1416)()
/usr/local/sage/sage-4.2/local/lib/python2.6/site-packages/sage/
schemes/hyperelliptic_curves/hyperelliptic_generic.pyc in _repr_(self)
93 """
94
---> 95 f, h = self._hyperelliptic_polynomials
96 R = self.base_ring()
97 y = self._printing_ring.gen()
AttributeError: 'test' object has no attribute
'_hyperelliptic_polynomials'
I am not sure what to do about this, any help will be much
appreciated.
Thank you,
David Holmes
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