Python 2.7.10 (default, Oct 23 2015, 19:19:21) 
[GCC 4.2.1 Compatible Apple LLVM 7.0.0 (clang-700.0.59.5)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
Academic license - for non-commercial use only

Gurobi Interactive Shell (mac64), Version 8.0.1
Copyright (c) 2018, Gurobi Optimization, LLC
Type "help()" for help

gurobi> myip = read("hw1.2.lp")

Read LP format model from file hw1.2.lp
Reading time = 0.00 seconds
: 1 rows, 5 columns, 5 nonzeros

gurobi> myip.optimize()

Optimize a model with 1 rows, 5 columns and 5 nonzeros
Variable types: 1 continuous, 4 integer (0 binary)
Coefficient statistics:
  Matrix range     [1e+00, 1e+00]
  Objective range  [2e+00, 1e+01]
  Bounds range     [2e+00, 1e+01]
  RHS range        [0e+00, 0e+00]
Found heuristic solution: objective -0.0000000
Presolve removed 1 rows and 5 columns
Presolve time: 0.00s
Presolve: All rows and columns removed

Explored 0 nodes (0 simplex iterations) in 0.01 seconds
Thread count was 1 (of 4 available processors)

Solution count 2: 82 -0 

Optimal solution found (tolerance 1.00e-04)
Best objective 8.200000000000e+01, best bound 8.200000000000e+01, gap 0.0000%

gurobi> myip.printAttr('X')

    Variable            X 
-------------------------
     Expanse            2 
      Xfiles            3 
 WalkingDead            7 
         Hrs           12 

gurobi> quit()