Remove print statement; add progress bar on evaluate

src/python/miplearn/components/primal.py

@@ -114,7 +114,8 @@ class PrimalSolutionComponent(Component):
 
     def evaluate(self, instances):
         ev = {}
-        for (instance_idx, instance) in enumerate(instances):
+        for instance_idx in tqdm(range(len(instances))):
+            instance = instances[instance_idx]
             solution_actual = instance.solution
             solution_pred = self.predict(instance)
 

src/python/miplearn/solvers/gurobi.py

@@ -63,7 +63,6 @@ class GurobiSolver(PyomoSolver):
             self._pyomo_solver.options["LazyConstraints"] = 1
             self._pyomo_solver.set_callback(cb)
             self.instance.found_violations = []
-        print(self._is_warm_start_available)
         streams = [StringIO()]
         if tee:
             streams += [sys.stdout]