Circumvent pandas-dev/pandas#38489

Author: xuhdev

pydax/loaders/_table.py

@@ -55,6 +55,9 @@ def load(self, path: Union[_typing.PathLike, Dict[str, str]], options: SchemaDic
             else:
                 dtypes[column] = type_
 
-        return pd.read_csv(path, parse_dates=parse_dates, dtype=dtypes,
+        return pd.read_csv(path, dtype=dtypes,
+                           # The following line after "if" is to circumvent
+                           # https://github.com/pandas-dev/pandas/issues/38489
+                           parse_dates=parse_dates if len(parse_dates) > 0 else False,
                            encoding=options.get('encoding', 'utf-8'),
                            delimiter=options.get('delimiter', ','))

tests/test_loaders.py

@@ -217,7 +217,7 @@ def test_csv_pandas_delimiter(self, tmp_path, noaa_jfk_schema, delimiter):
         noaa_jfk_schema['subdatasets']['jfk_weather_cleaned']['format']['options']['delimiter'] = delimiter
         data = Dataset(noaa_jfk_schema, tmp_path,
                        mode=Dataset.InitializationMode.DOWNLOAD_AND_LOAD).data['jfk_weather_cleaned']
-        # None of these delimiters exist in the file, number of columns should be 1
+        # None of these delimiters exist in the file, number of columns should be 1.
         assert len(data.columns) == 1
 
     def test_csv_pandas_loader_no_path(self):