sympy based mathematical programming language (Python 3)

 Optlang is a Python package for solving mathematical optimization problems,
 i.e. maximizing or minimizing an objective function over a set of variables
 subject to a number of constraints. Optlang provides a common interface to a
 series of optimization tools, so different solver backends can be changed in
 a transparent way. Optlang's object-oriented API takes advantage of the
 symbolic math library sympy to allow objective functions and constraints to
 be easily formulated from symbolic expressions of variables.
 .
 This package installs the library for Python 3.