print_solution

print_solution.py

# Solve
status = solver.Solve()

print('==== Assignment Result: ====')
if status == pywraplp.Solver.OPTIMAL or status == pywraplp.Solver.FEASIBLE:
    print('Total cost = ', solver.Objective().Value(), '\n')

    prods = generate_items_dict(data_model['products'])
    locations = generate_items_dict(data_model['locations'])

    for i in range(num_products):
        product = data_model['products'][i]

        for j in range(num_locations):
            location = data_model['locations'][j]

            if x[i, j].solution_value() > 0.5:

                prods[product]  += x[i, j].solution_value()
                locations[location] += x[i, j].solution_value()

                cost_product = data_model['costs'][i][j].product
                cost_product_name = data_model['costs'][i][j].product.name
                cost_location_name = data_model['costs'][i][j].location.name
                quantity = x[i, j].solution_value()

                res = 'Product %s assigned to Shelf %s. Quantity = %d  Cost = %f '
                print(res % ( cost_product_name, cost_location_name , quantity, 
                              quantity * (data_model['costs'][i][j].value - 
                                          data_model['allocated_unallocated_prod_relationship'][i][j].weight) ))
    print()
    print('==== Weights w[i, j, k, j] ====')
    total_weight = 0
    for upr in data_model['unallocated_prod_relationship']:
        i, k = data_model['products'].index(upr.product1), data_model['products'].index(upr.product2)
        for j in range(num_locations):
            res = 'Product %s and Product %s at Location %s: Weight = %d'
            print(res % (upr.product1.name, upr.product2.name, data_model['locations'][j].name, w[i, j, k, j].solution_value() ))
            total_weight += w[i, j, k, j].solution_value()
    print('Total Weight = %d' % (total_weight))
    
    
if status == pywraplp.Solver.OPTIMAL:
    print('OPTIMAL')
elif status == pywraplp.Solver.FEASIBLE:
    print('FEASIBLE')
else:
    print('No Solution Found')