#16831: TensorProductsCategory fails to work in 6.3
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Reporter: cnassau | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.4
Component: categories | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by cnassau):
It turns out this problem can be circumvented by making `TensorProducts` a
method, rather than a subclass:
{{{
class TestCat(Category_over_base_ring):
@cached_method
def super_categories(self):
return []
class ParentMethods:
def mytestmthd(self):
return "ok"
def TensorProducts(self):
return TestCat_TensorProducts(self)
class TestCat_TensorProducts(TensorProductsCategory):
def _repr_(self):
return "my tensor tst category"
@cached_method
def extra_super_categories(self):
return [self.base_category()]
class ParentMethods:
def tenstestmthd(self):
return "ok"
}}}
Seems I've been hit by black-category-magic once again...
But even with this "fix" the `TensorProductsCategory(C)` still throws an
error.
--
Ticket URL: <http://trac.sagemath.org/ticket/16831#comment:3>
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