#17808: Preparse integers as strings
---------------------------+----------------------------
Reporter: jdemeyer | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.6
Component: misc | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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Currently we have
{{{
sage: print preparse("100")
Integer(100)
sage: preparse("100.0")
RealNumber('100.0')
}}}
but the first could be changed to
{{{
sage: print preparse("100")
Integer('100')
}}}
This has two advantages:
1. it would also be a lot faster since MPIR parses large string constants
faster than Python:
{{{
sage: s="1" + "0"*10000
sage: timeit("""eval("%s")""" % s)
625 loops, best of 3: 751 µs per loop
sage: timeit("""eval('Integer("%s")')""" % s)
625 loops, best of 3: 151 µs per loop
}}}
2. It solves #17807: thanks to #17413, entering `0100` will give a
deprecation warning so at users should know something funny is going on
when they enter `0100`.
--
Ticket URL: <http://trac.sagemath.org/ticket/17808>
Sage <http://www.sagemath.org>
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