Fix TorchScript JSON string key bug (ultralytics#9015)

* Fix TorchScript JSON string key bug Resolves ultralytics#9011 Signed-off-by: Glenn Jocher <[email protected]> * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci Signed-off-by: Glenn Jocher <[email protected]> Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
ctjanuhowski · Sep 8, 2022 · 5fbdb3c · 5fbdb3c
1 parent a5c815c
commit 5fbdb3c
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/models/common.py b/models/common.py
@@ -337,8 +337,10 @@ def __init__(self, weights='yolov5s.pt', device=torch.device('cpu'), dnn=False,
             extra_files = {'config.txt': ''}  # model metadata
             model = torch.jit.load(w, _extra_files=extra_files)
             model.half() if fp16 else model.float()
-            if extra_files['config.txt']:
-                d = json.loads(extra_files['config.txt'])  # extra_files dict
+            if extra_files['config.txt']:  # load metadata dict
+                d = json.loads(extra_files['config.txt'],
+                               object_hook=lambda d: {int(k) if k.isdigit() else k: v
+                                                      for k, v in d.items()})
                 stride, names = int(d['stride']), d['names']
         elif dnn:  # ONNX OpenCV DNN
             LOGGER.info(f'Loading {w} for ONNX OpenCV DNN inference...')