verbose on final_epoch (ultralytics#1997)

Author: glenn-jocher

test.py

@@ -37,7 +37,6 @@ def test(data,
          plots=True,
          log_imgs=0,  # number of logged images
          compute_loss=None):
-
     # Initialize/load model and set device
     training = model is not None
     if training:  # called by train.py
@@ -227,7 +226,7 @@ def test(data,
     print(pf % ('all', seen, nt.sum(), mp, mr, map50, map))
 
     # Print results per class
-    if (verbose or (nc <= 20 and not training)) and nc > 1 and len(stats):
+    if (verbose or (nc < 50 and not training)) and nc > 1 and len(stats):
         for i, c in enumerate(ap_class):
             print(pf % (names[c], seen, nt[c], p[i], r[i], ap50[i], ap[i]))
 

train.py

@@ -344,6 +344,7 @@ def train(hyp, opt, device, tb_writer=None, wandb=None):
                                                  single_cls=opt.single_cls,
                                                  dataloader=testloader,
                                                  save_dir=save_dir,
+                                                 verbose=nc < 50 and final_epoch,
                                                  plots=plots and final_epoch,
                                                  log_imgs=opt.log_imgs if wandb else 0,
                                                  compute_loss=compute_loss)