sub_multi_values.py

"Example substitution; adapted from t_sub.py/t_NomialSubs/test_Vector"
from gpkit import Variable, VectorVariable
x = Variable("x")
y = Variable("y")
z = VectorVariable(2, "z")
p = x*y*z
assert all(p.sub({x: 1, "y": 2}) == 2*z)
assert all(p.sub({x: 1, y: 2, "z": [1, 2]}) == z.sub({z: [2, 4]}))