CVXPY
Minimize
  Sum(X, None, False)
Subject To
Bounds
 1.0 <= X
 X[True, True] <= [3. 4.]
End
----------------------------------------
AFTER COMPILATION
Minimize
  x_0 + x_1
Subject To
Bounds
 1 <= x_0 <= 3
 1 <= x_1 <= 4
End
----------------------------------------
GUROBI
Minimize
  X[0] + X[1]
Subject To
Bounds
 1 <= X[0] <= 3
 1 <= X[1] <= 4
End