fix fetch_list type (#786)

09.gan/dc_gan.py

@@ -124,7 +124,7 @@ def train(args):
             total_label = np.concatenate([real_labels, fake_labels])
             s_time = time.time()
             generated_image = exe.run(
-                g_program, feed={'noise': noise_data}, fetch_list={g_img})[0]
+                g_program, feed={'noise': noise_data}, fetch_list=[g_img])[0]
 
             total_images = np.concatenate([real_image, generated_image])
 
@@ -134,7 +134,7 @@ def train(args):
                     'img': generated_image,
                     'label': fake_labels,
                 },
-                fetch_list={d_loss})[0][0]
+                fetch_list=[d_loss])[0][0]
 
             d_loss_2 = exe.run(
                 d_program,
@@ -142,7 +142,7 @@ def train(args):
                     'img': real_image,
                     'label': real_labels,
                 },
-                fetch_list={d_loss})[0][0]
+                fetch_list=[d_loss])[0][0]
 
             d_loss_n = d_loss_1 + d_loss_2
             losses[0].append(d_loss_n)
@@ -153,7 +153,7 @@ def train(args):
                 dg_loss_n = exe.run(
                     dg_program,
                     feed={'noise': noise_data},
-                    fetch_list={dg_loss})[0][0]
+                    fetch_list=[dg_loss])[0][0]
                 losses[1].append(dg_loss_n)
             t_time += (time.time() - s_time)
             if batch_id % 10 == 0:
@@ -162,7 +162,7 @@ def train(args):
                 # generate image each batch
                 generated_images = exe.run(
                     g_program_test, feed={'noise': const_n},
-                    fetch_list={g_img})[0]
+                    fetch_list=[g_img])[0]
                 total_images = np.concatenate([real_image, generated_images])
                 fig = plot(total_images)
                 msg = "Epoch ID={0} Batch ID={1} D-Loss={2} DG-Loss={3}\n gen={4}".format(