Merge `model()` and `model.predict()` (#146)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

tests/test_python.py

@@ -1,19 +1,17 @@
 from pathlib import Path
 
-import torch
-
 from ultralytics import YOLO
 from ultralytics.yolo.utils import ROOT, SETTINGS
 
-MODEL = Path(SETTINGS['weights_dir']) / 'yolov8n.pt'
 CFG = 'yolov8n.yaml'
+MODEL = Path(SETTINGS['weights_dir']) / 'yolov8n.pt'
+SOURCE = ROOT / 'assets/bus.jpg'
 
 
 def test_model_forward():
     model = YOLO(CFG)
-    img = torch.rand(1, 3, 320, 320)
-    model.forward(img)
-    model(img)
+    model.predict(SOURCE)
+    model(SOURCE)
 
 
 def test_model_info():
@@ -43,15 +41,13 @@ def test_val():
 def test_train_scratch():
     model = YOLO(CFG)
     model.train(data="coco128.yaml", epochs=1, imgsz=32)
-    img = torch.rand(1, 3, 320, 320)
-    model(img)
+    model(SOURCE)
 
 
 def test_train_pretrained():
     model = YOLO(MODEL)
     model.train(data="coco128.yaml", epochs=1, imgsz=32)
-    img = torch.rand(1, 3, 320, 320)
-    model(img)
+    model(SOURCE)
 
 
 def test_export_torchscript():
@@ -100,11 +96,3 @@ def test_export_paddle():
 def test_all_model_yamls():
     for m in list((ROOT / 'yolo/v8/models').rglob('*.yaml')):
         YOLO(m.name)
-
-
-# def run_all_tests():  # do not name function test_...
-#     pass
-#
-#
-# if __name__ == "__main__":
-#     run_all_tests()

ultralytics/yolo/engine/model.py

@@ -1,12 +1,10 @@
 from pathlib import Path
 
-import torch
-
 from ultralytics import yolo  # noqa
 from ultralytics.nn.tasks import ClassificationModel, DetectionModel, SegmentationModel, attempt_load_weights
 from ultralytics.yolo.configs import get_config
 from ultralytics.yolo.engine.exporter import Exporter
-from ultralytics.yolo.utils import DEFAULT_CONFIG, HELP_MSG, LOGGER, yaml_load
+from ultralytics.yolo.utils import DEFAULT_CONFIG, LOGGER, yaml_load
 from ultralytics.yolo.utils.checks import check_imgsz, check_yaml
 from ultralytics.yolo.utils.torch_utils import guess_task_from_head, smart_inference_mode
 
@@ -55,6 +53,9 @@ class YOLO:
         # Load or create new YOLO model
         {'.pt': self._load, '.yaml': self._new}[Path(model).suffix](model)
 
+    def __call__(self, source):
+        return self.predict(source)
+
     def _new(self, cfg: str, verbose=True):
         """
         Initializes a new model and infers the task type from the model definitions.
@@ -211,14 +212,6 @@ class YOLO:
 
         return model_class, trainer_class, validator_class, predictor_class
 
-    @smart_inference_mode()
-    def __call__(self, imgs):
-        device = next(self.model.parameters()).device  # get model device
-        return self.model(imgs.to(device))
-
-    def forward(self, imgs):
-        return self.__call__(imgs)
-
     @staticmethod
     def _reset_ckpt_args(args):
         args.pop("device", None)