Support both `*.yml` and `*.yaml` files (#4086)

Co-authored-by: ChristopherRogers1991 <ChristopherRogers1991@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Sungjoo(Dennis) Hwang <48212469+Denny-Hwang@users.noreply.github.com>

docs/models/yolov8.md

@@ -22,10 +22,10 @@ YOLOv8 is the latest iteration in the YOLO series of real-time object detectors,
 ## Supported Tasks
 
 | Model Type  | Pre-trained Weights                                                                                                 | Task                  |
-|-------------|------------------------------------------------------------------------------------------------------------------|-----------------------|
+|-------------|---------------------------------------------------------------------------------------------------------------------|-----------------------|
 | YOLOv8      | `yolov8n.pt`, `yolov8s.pt`, `yolov8m.pt`, `yolov8l.pt`, `yolov8x.pt`                                                | Detection             |
 | YOLOv8-seg  | `yolov8n-seg.pt`, `yolov8s-seg.pt`, `yolov8m-seg.pt`, `yolov8l-seg.pt`, `yolov8x-seg.pt`                            | Instance Segmentation |
-| YOLOv8-pose | `yolov8n-pose.pt`, `yolov8s-pose.pt`, `yolov8m-pose.pt`, `yolov8l-pose.pt`, `yolov8x-pose.pt` ,`yolov8x-pose-p6` | Pose/Keypoints        |
+| YOLOv8-pose | `yolov8n-pose.pt`, `yolov8s-pose.pt`, `yolov8m-pose.pt`, `yolov8l-pose.pt`, `yolov8x-pose.pt`, `yolov8x-pose-p6.pt` | Pose/Keypoints        |
 | YOLOv8-cls  | `yolov8n-cls.pt`, `yolov8s-cls.pt`, `yolov8m-cls.pt`, `yolov8l-cls.pt`, `yolov8x-cls.pt`                            | Classification        |
 
 ## Supported Modes

ultralytics/engine/exporter.py

@@ -177,7 +177,7 @@ class Exporter:
         im = torch.zeros(self.args.batch, 3, *self.imgsz).to(self.device)
         file = Path(
             getattr(model, 'pt_path', None) or getattr(model, 'yaml_file', None) or model.yaml.get('yaml_file', ''))
-        if file.suffix == '.yaml':
+        if file.suffix in ('.yaml', '.yml'):
             file = Path(file.name)
 
         # Update model

ultralytics/engine/model.py

@@ -88,7 +88,7 @@ class Model:
         suffix = Path(model).suffix
         if not suffix and Path(model).stem in GITHUB_ASSET_STEMS:
             model, suffix = Path(model).with_suffix('.pt'), '.pt'  # add suffix, i.e. yolov8n -> yolov8n.pt
-        if suffix == '.yaml':
+        if suffix in ('.yaml', '.yml'):
             self._new(model, task)
         else:
             self._load(model, task)

ultralytics/engine/trainer.py

@@ -119,7 +119,7 @@ class BaseTrainer:
         try:
             if self.args.task == 'classify':
                 self.data = check_cls_dataset(self.args.data)
-            elif self.args.data.endswith('.yaml') or self.args.task in ('detect', 'segment'):
+            elif self.args.data.split('.')[-1] in ('yaml', 'yml') or self.args.task in ('detect', 'segment'):
                 self.data = check_det_dataset(self.args.data)
                 if 'yaml_file' in self.data:
                     self.args.data = self.data['yaml_file']  # for validating 'yolo train data=url.zip' usage

ultralytics/engine/validator.py

@@ -126,7 +126,7 @@ class BaseValidator:
                 self.args.batch = 1  # export.py models default to batch-size 1
                 LOGGER.info(f'Forcing batch=1 square inference (1,3,{imgsz},{imgsz}) for non-PyTorch models')
 
-            if isinstance(self.args.data, str) and self.args.data.endswith('.yaml'):
+            if isinstance(self.args.data, str) and self.args.data.split('.')[-1] in ('yaml', 'yml'):
                 self.data = check_det_dataset(self.args.data)
             elif self.args.task == 'classify':
                 self.data = check_cls_dataset(self.args.data, split=self.args.split)

ultralytics/models/fastsam/model.py

@@ -23,7 +23,7 @@ class FastSAM(Model):
         """Call the __init__ method of the parent class (YOLO) with the updated default model"""
         if model == 'FastSAM.pt':
             model = 'FastSAM-x.pt'
-        assert Path(model).suffix != '.yaml', 'FastSAM models only support pre-trained models.'
+        assert Path(model).suffix not in ('.yaml', '.yml'), 'FastSAM models only support pre-trained models.'
         super().__init__(model=model, task='segment')
 
     @property

ultralytics/models/nas/model.py

@@ -23,7 +23,7 @@ from .val import NASValidator
 class NAS(Model):
 
     def __init__(self, model='yolo_nas_s.pt') -> None:
-        assert Path(model).suffix != '.yaml', 'YOLO-NAS models only support pre-trained models.'
+        assert Path(model).suffix not in ('.yaml', '.yml'), 'YOLO-NAS models only support pre-trained models.'
         super().__init__(model, task='detect')
 
     @smart_inference_mode()

ultralytics/models/rtdetr/model.py

@@ -16,8 +16,8 @@ class RTDETR(Model):
     """
 
     def __init__(self, model='rtdetr-l.pt') -> None:
-        if model and not model.endswith('.pt') and not model.endswith('.yaml'):
-            raise NotImplementedError('RT-DETR only supports creating from pt file or yaml file.')
+        if model and not model.split('.')[-1] in ('pt', 'yaml', 'yml'):
+            raise NotImplementedError('RT-DETR only supports creating from *.pt file or *.yaml file.')
         super().__init__(model=model, task='detect')
 
     @property

ultralytics/models/yolo/classify/train.py

@@ -57,7 +57,7 @@ class ClassificationTrainer(BaseTrainer):
             self.model, _ = attempt_load_one_weight(model, device='cpu')
             for p in self.model.parameters():
                 p.requires_grad = True  # for training
-        elif model.endswith('.yaml'):
+        elif model.split('.')[-1] in ('yaml', 'yml'):
             self.model = self.get_model(cfg=model)
         elif model in torchvision.models.__dict__:
             self.model = torchvision.models.__dict__[model](weights='IMAGENET1K_V1' if self.args.pretrained else None)

ultralytics/utils/benchmarks.py

@@ -192,7 +192,7 @@ class ProfileModels:
         output = []
         for file in files:
             engine_file = file.with_suffix('.engine')
-            if file.suffix in ('.pt', '.yaml'):
+            if file.suffix in ('.pt', '.yaml', '.yml'):
                 model = YOLO(str(file))
                 model.fuse()  # to report correct params and GFLOPs in model.info()
                 model_info = model.info()
@@ -229,7 +229,7 @@ class ProfileModels:
             if path.is_dir():
                 extensions = ['*.pt', '*.onnx', '*.yaml']
                 files.extend([file for ext in extensions for file in glob.glob(str(path / ext))])
-            elif path.suffix in {'.pt', '.yaml'}:  # add non-existing
+            elif path.suffix in ('.pt', '.yaml', '.yml'):  # add non-existing
                 files.append(str(path))
             else:
                 files.extend(glob.glob(str(path)))