On 4 April 2016 at 16:09, Random832 <random...@fastmail.com> wrote: > On Mon, Apr 4, 2016, at 03:12, Nagy László Zsolt wrote: >> >> Hi All, >> >> If anyone is interested, a module was born: >> >> https://bitbucket.org/nagylzs/intervalset >> https://pypi.python.org/pypi/intervalset/0.1.1 > > I don't know if I like it being immutable. Maybe have separate mutable > and immutable versions. > > Like I said before, I don't think the set-like operations on Intervals > are useful - what can you accomplish with them rather than by making a > set consisting of only one interval and doing operations on that?
I guess it depends what your application is but sympy has interval sets and can do computation on them to represent the solutions of equations/inequalities (many other types of set are also included). For example: In [1]: from sympy import Interval In [2]: Interval Out[2]: sympy.core.sets.Interval In [3]: Interval(1, 2) Out[3]: [1, 2] In [4]: help(Interval) In [5]: Interval(1, 2) & Interval(3, 4) Out[5]: ∅ In [6]: Interval(1, 2) | Interval(3, 4) Out[6]: [1, 2] ∪ [3, 4] There is some discussion about why it's good to do this stuff with sets (for sympy's purposes here): http://docs.sympy.org/latest/modules/solvers/solveset.html#why-do-we-use-sets-as-an-output-type -- Oscar -- https://mail.python.org/mailman/listinfo/python-list
