integration with lp_solve.
"""
+import fractions
import os
import site
import sys
[obj, x, duals, ret] = lpsolve('get_solution', self._lp)
return [obj, x, duals]
+
+
+ def objective_coefficient_gcd(self):
+ """
+ Return the GCD of all objective function coefficients.
+ """
+ return reduce(fractions.gcd, self.objective_coefficients)