#13516: prime_powers doesn't work with start very well
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Reporter: kcrisman | Owner: was
Type: defect | Status: needs_work
Priority: major | Milestone: sage-5.4
Component: number theory | Resolution:
Keywords: beginner | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Kevin Halasz | Merged in:
Dependencies: | Stopgaps:
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Comment (by ppurka):
I think you can write it like this
{{{
from sage.rings.integer import Integer
if not isinstance(start, (int, Integer)):
raise TypeError("start must be an integer")
if stop is not None and not isinstance(stop, (int, Integer)):
raise TypeError("stop must be an integer")
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13516#comment:19>
Sage <http://www.sagemath.org>
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