Cleanup (#168)

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

ultralytics/nn/autobackend.py

@@ -1,3 +1,5 @@
+# Ultralytics YOLO 🚀, GPL-3.0 license
+
 import json
 import platform
 from collections import OrderedDict, namedtuple
@@ -65,6 +67,7 @@ class AutoBackend(nn.Module):
             names = model.module.names if hasattr(model, 'module') else model.names  # get class names
             model.half() if fp16 else model.float()
             self.model = model  # explicitly assign for to(), cpu(), cuda(), half()
+            pt = True
         elif pt:  # PyTorch
             from ultralytics.nn.tasks import attempt_load_weights
             model = attempt_load_weights(weights if isinstance(weights, list) else w,