set_node_supply -> set_node_supplies in python min cost flow

ortools/graph/python/min_cost_flow.cc

@@ -32,7 +32,7 @@ PYBIND11_MODULE(min_cost_flow, m) {
       pybind11::vectorize(&SimpleMinCostFlow::AddArcWithCapacityAndUnitCost));
   smcf.def("set_node_supply", &SimpleMinCostFlow::SetNodeSupply, arg("node"),
            arg("supply"));
-  smcf.def("set_nodes_supply",
+  smcf.def("set_nodes_supplies",
            pybind11::vectorize(&SimpleMinCostFlow::SetNodeSupply));
   smcf.def("num_nodes", &SimpleMinCostFlow::NumNodes);
   smcf.def("num_arcs", &SimpleMinCostFlow::NumArcs);

ortools/graph/samples/balance_min_flow.py

@@ -70,7 +70,6 @@ def main():
 
     # [START print_solution]
     if status == smcf.OPTIMAL:
-        smcf.solve()
         print('Total cost = ', smcf.optimal_cost())
         print()
         for arc in range(smcf.num_arcs()):

ortools/graph/samples/simple_min_cost_flow_program.py

@@ -47,7 +47,7 @@ def main():
         start_nodes, end_nodes, capacities, unit_costs)
 
     # Add supply for each nodes.
-    smcf.set_nodes_supply(np.arange(0, len(supplies)), supplies)
+    smcf.set_nodes_supplies(np.arange(0, len(supplies)), supplies)
     # [END constraints]
 
     # [START solve]