bug fix (exception handling)

data/maker/prepare/__init__.py

@@ -91,9 +91,11 @@ class Input :
         #
         # We will look into the count and make a judgment call
         try:
-            _df = pd.DataFrame(self.df.apply(lambda col: col.dropna().unique().size )).T
-            MIN_SPACE_SIZE = 2
-            self._columns  = cols if cols else _df.apply(lambda col:None if col[0] == row_count or col[0] < MIN_SPACE_SIZE else col.name).dropna().tolist()
+            # _df = pd.DataFrame(self.df.apply(lambda col: col.dropna().unique().size )).T
+            # MIN_SPACE_SIZE = 2
+            # self._columns  = cols if cols else _df.apply(lambda col:None if col[0] == row_count or col[0] < MIN_SPACE_SIZE else col.name).dropna().tolist()
+            # self._io = _df.to_dict(orient='records')
+            _df  = self.df.nunique().T / self.df.shape[0]
             self._io = _df.to_dict(orient='records')
         except Exception as e:
             print (e)