Update general.py (#9454)

Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>

Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>

utils/general.py

@@ -469,8 +469,7 @@ def check_dataset(data, autodownload=True):
 
     # Read yaml (optional)
     if isinstance(data, (str, Path)):
-        with open(data, errors='ignore') as f:
-            data = yaml.safe_load(f)  # dictionary
+        data = yaml_load(data)  # dictionary
 
     # Checks
     for k in 'train', 'val', 'names':
@@ -485,7 +484,13 @@ def check_dataset(data, autodownload=True):
         path = (ROOT / path).resolve()
     for k in 'train', 'val', 'test':
         if data.get(k):  # prepend path
-            data[k] = str(path / data[k]) if isinstance(data[k], str) else [str(path / x) for x in data[k]]
+            if isinstance(data[k], str):
+                x = (path / data[k]).resolve()
+                if not x.exists() and data[k].startswith('../'):
+                    x = (path / data[k][3:]).resolve()
+                data[k] = str(x)
+            else:
+                data[k] = [str((path / x).resolve()) for x in data[k]]
 
     # Parse yaml
     train, val, test, s = (data.get(x) for x in ('train', 'val', 'test', 'download'))
@@ -496,13 +501,12 @@ def check_dataset(data, autodownload=True):
             if not s or not autodownload:
                 raise Exception('Dataset not found ❌')
             t = time.time()
-            root = path.parent if 'path' in data else '..'  # unzip directory i.e. '../'
             if s.startswith('http') and s.endswith('.zip'):  # URL
                 f = Path(s).name  # filename
                 LOGGER.info(f'Downloading {s} to {f}...')
                 torch.hub.download_url_to_file(s, f)
-                Path(root).mkdir(parents=True, exist_ok=True)  # create root
-                ZipFile(f).extractall(path=root)  # unzip
+                Path(DATASETS_DIR).mkdir(parents=True, exist_ok=True)  # create root
+                ZipFile(f).extractall(path=DATASETS_DIR)  # unzip
                 Path(f).unlink()  # remove zip
                 r = None  # success
             elif s.startswith('bash '):  # bash script
@@ -511,7 +515,7 @@ def check_dataset(data, autodownload=True):
             else:  # python script
                 r = exec(s, {'yaml': data})  # return None
             dt = f'({round(time.time() - t, 1)}s)'
-            s = f"success ✅ {dt}, saved to {colorstr('bold', root)}" if r in (0, None) else f"failure {dt} ❌"
+            s = f"success ✅ {dt}, saved to {colorstr('bold', DATASETS_DIR)}" if r in (0, None) else f"failure {dt} ❌"
             LOGGER.info(f"Dataset download {s}")
     check_font('Arial.ttf' if is_ascii(data['names']) else 'Arial.Unicode.ttf', progress=True)  # download fonts
     return data  # dictionary