fall back error (microsoft#875)

Author: you-n-g

qlib/data/dataset/loader.py

@@ -226,7 +226,7 @@ class StaticDataLoader(DataLoader, Serializable):
 
     include_attr = ["_config"]
 
-    def __init__(self, config: Union[dict, str], join="outer"):
+    def __init__(self, config: Union[dict, str, pd.DataFrame], join="outer"):
         """
         Parameters
         ----------
@@ -269,6 +269,8 @@ def _maybe_load_raw_data(self):
         elif isinstance(self._config, (str, Path)):
             with Path(self._config).open("rb") as f:
                 self._data = pickle.load(f)
+        elif isinstance(self._config, pd.DataFrame):
+            self._data = self._config
 
 
 class DataLoaderDH(DataLoader):

qlib/data/ops.py

@@ -27,6 +27,12 @@
         "#### Do not import qlib package in the repository directory in case of importing qlib from . without compiling #####"
     )
     raise
+except ValueError as e:
+    print("!!!!!!!! A error occurs when importing operators implemented based on Cython.!!!!!!!!")
+    print("!!!!!!!! They will be disabled. Please Upgrade your numpy to enable them     !!!!!!!!")
+    # We catch this error because some platform can't upgrade there package (e.g. Kaggle)
+    # https://www.kaggle.com/general/293387
+    # https://www.kaggle.com/product-feedback/98562
 
 
 np.seterr(invalid="ignore")