#15130: Docbuilder issue with BasisExchangeMatroid
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Reporter: jdemeyer | Owner:
Type: defect | Status: new
Priority: critical | Milestone: sage-5.13
Component: matroid theory | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by Stefan):
Let me explain the reason for those circular imports.
We have an abstract class Matroid with default implementations for nearly
every method. For some of those, we return a subclass such as MinorMatroid
or DualMatroid; for others (like is_isomorphic()) we convert to a
BasisMatroid and use its implementation.
The class BasisMatroid is a subclass of BasisExchangeMatroid, which
subclasses Matroid.
If you know of a way to get this functionality without circular imports,
I'm all ears!
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Ticket URL: <http://trac.sagemath.org/ticket/15130#comment:5>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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