DDP, Comet, URLError fixes, improved error handling (#658)

Co-authored-by: Ayush Chaurasia <ayush.chaurarsia@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Tungway1990 <68179274+Tungway1990@users.noreply.github.com>

ultralytics/yolo/v8/detect/train.py

@@ -199,7 +199,7 @@ def train(cfg=DEFAULT_CFG, use_python=False):
     data = cfg.data or "coco128.yaml"  # or yolo.ClassificationDataset("mnist")
     device = cfg.device if cfg.device is not None else ''
 
-    args = dict(model=model, data=data, device=device, verbose=True)
+    args = dict(model=model, data=data, device=device)
     if use_python:
         from ultralytics import YOLO
         YOLO(model).train(**args)