Problems loading models #622
Description
OK. I have trained models and I have them sitting in this directory.
C:\Users\User\GBAW23
When I try to run this code.
automl = AutoML(results_path=r"C:\Users\User\GBAW23")
I get this error
What am I doing wrong?
2023-05-19 20:24:33,807 supervised.exceptions ERROR Cannot load AutoML directory. Expecting value: line 1 column 1 (char 0)
JSONDecodeError Traceback (most recent call last)
File ~\anaconda3\lib\site-packages\supervised\base_automl.py:211, in BaseAutoML.load(self, path)
210 else:
--> 211 m = ModelFramework.load(path, model_subpath, lazy_load)
212 self._models += [m]
File ~\anaconda3\lib\site-packages\supervised\model_framework.py:570, in ModelFramework.load(results_path, model_subpath, lazy_load)
568 logger.info(f"Loading model framework from {model_path}")
--> 570 json_desc = json.load(open(os.path.join(model_path, "framework.json")))
571 mf = ModelFramework(json_desc["params"])
File ~\anaconda3\lib\json_init_.py:293, in load(fp, cls, object_hook, parse_float, parse_int, parse_constant, object_pairs_hook, **kw)
276 """Deserialize fp (a .read()-supporting file-like object containing
277 a JSON document) to a Python object.
278
(...)
291 kwarg; otherwise JSONDecoder is used.
292 """
--> 293 return loads(fp.read(),
294 cls=cls, object_hook=object_hook,
295 parse_float=parse_float, parse_int=parse_int,
296 parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
File ~\anaconda3\lib\json_init_.py:346, in loads(s, cls, object_hook, parse_float, parse_int, parse_constant, object_pairs_hook, **kw)
343 if (cls is None and object_hook is None and
344 parse_int is None and parse_float is None and
345 parse_constant is None and object_pairs_hook is None and not kw):
--> 346 return _default_decoder.decode(s)
347 if cls is None:
File ~\anaconda3\lib\json\decoder.py:337, in JSONDecoder.decode(self, s, _w)
333 """Return the Python representation of s (a str instance
334 containing a JSON document).
335
336 """
--> 337 obj, end = self.raw_decode(s, idx=_w(s, 0).end())
338 end = _w(s, end).end()
File ~\anaconda3\lib\json\decoder.py:355, in JSONDecoder.raw_decode(self, s, idx)
354 except StopIteration as err:
--> 355 raise JSONDecodeError("Expecting value", s, err.value) from None
356 return obj, end
JSONDecodeError: Expecting value: line 1 column 1 (char 0)
During handling of the above exception, another exception occurred:
AutoMLException Traceback (most recent call last)
Cell In[13], line 2
1 automl = AutoML(results_path=r"C:\Users\User\GBAW23")
----> 2 automl.predict(X)
File ~\anaconda3\lib\site-packages\supervised\automl.py:387, in AutoML.predict(self, X)
370 def predict(self, X: Union[List, numpy.ndarray, pandas.DataFrame]) -> numpy.ndarray:
371 """
372 Computes predictions from AutoML best model.
373
(...)
385 AutoMLException: Model has not yet been fitted.
386 """
--> 387 return self._predict(X)
File ~\anaconda3\lib\site-packages\supervised\base_automl.py:1369, in BaseAutoML._predict(self, X)
1367 def _predict(self, X):
-> 1369 predictions = self._base_predict(X)
1370 # Return predictions
1371 # If classification task the result is in column 'label'
1372 # If regression task the result is in column 'prediction'
1373 return (
1374 predictions["label"].to_numpy()
1375 if self._ml_task != REGRESSION
1376 else predictions["prediction"].to_numpy()
1377 )
File ~\anaconda3\lib\site-packages\supervised\base_automl.py:1301, in BaseAutoML._base_predict(self, X, model)
1299 if model is None:
1300 if self._best_model is None:
-> 1301 self.load(self.results_path)
1302 model = self._best_model
1304 if model is None:
File ~\anaconda3\lib\site-packages\supervised\base_automl.py:234, in BaseAutoML.load(self, path)
231 self.n_classes = self._data_info["n_classes"]
233 except Exception as e:
--> 234 raise AutoMLException(f"Cannot load AutoML directory. {str(e)}")
AutoMLException: Cannot load AutoML directory. Expecting value: line 1 column 1 (char 0)