#15345: Laurent polynomial rings don't preserve coercion
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Reporter: darij | Owner:
Type: defect | Status: needs_review
Priority: major | Milestone: sage-6.2
Component: algebra | Resolution:
Keywords: laurent | Merged in:
polynomials, polynomials, | Reviewers:
coercion, categories | Work issues: add doctests
Authors: Frédéric | Commit:
Chapoton, David Roe | 00393f332216d6d2b009842b02e1f9384ad0d807
Report Upstream: N/A | Stopgaps:
Branch: u/chapoton/15345 |
Dependencies: |
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Comment (by darij):
Two comments, not a review (I fear I have no idea what spooky action at a
distance these changes might cause):
- In `hall_algebra.py`, please change not just the doctests but the whole
WARNING they're in. They should be a regular example, not a WARNING.
- Could you maybe document `converter`? I know it's an internal function,
but I want to understand what it does and why.
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Ticket URL: <http://trac.sagemath.org/ticket/15345#comment:23>
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