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18 changes: 11 additions & 7 deletions utils/general.py
Original file line number Diff line number Diff line change
Expand Up @@ -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':
Expand All @@ -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'))
Expand All @@ -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
Expand All @@ -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 βœ… {dt}, saved to {colorstr('bold', root)}" if r in (0, None) else f"failure {dt} ❌"
s = f"success βœ… {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
Expand Down