Comment #32 on issue 1778 by ronan.l...@gmail.com: Rational from string can
be improved
http://code.google.com/p/sympy/issues/detail?id=1778
* I don't like the name of rsimplify: what it does appears unrelated to
simplification and there's a possible confusion with ratsimp.
* I think Rational should mimic the interface of fractions.Fraction (from
std lib) as
much as possible, so Rational("3/2") should work.
* The part dealing with sympification of dicts is unrelated to Rational and
should be
in a separate commit, and probably reviewed in a separate issue. (BTW, I
would rather
see the sympification of lists, tuples and sets removed than this added)
* I don't like that you add so much specialised code in sympify(). Perhaps
this
should go into a helper function called from sympify(). (Actually, it's OK
like this,
this is more of a TODO for me in issue 1896.)
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