#15163: sum() in the console is overshadowed by symbolic_sum() ?
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Reporter: darij | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-5.12
Component: PLEASE CHANGE | Keywords: prelude
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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{{{
sage: c31 = Composition([3,1])
sage: sum(c31)
---------------------------------------------------------------------------
TypeError Traceback (most recent call
last)
<ipython-input-5-cd64b2e19a3e> in <module>()
----> 1 sum(c31)
/home/darij/sage-5.11.beta3/local/lib/python2.7/site-
packages/sage/misc/functional.pyc in symbolic_sum(expression, *args,
**kwds)
652 """
653 if hasattr(expression, 'sum'):
--> 654 return expression.sum(*args, **kwds)
655 elif len(args) <= 1:
656 return sum(expression, *args)
TypeError: sum() takes exactly 1 argument (0 given)
}}}
This should instead return 4 (the sum of the entries of the composition
c31). This bug appears only interactively; in methods sum() is fine.
--
Ticket URL: <http://trac.sagemath.org/ticket/15163>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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