fix: Yahoo connector

pandasai/connectors/base.py

@@ -74,14 +74,14 @@ def _load_connector_config(self, config: BaseConnectorConfig):
         Returns:
             _type_: BaseConnectorConfig
         """
-        raise NotImplementedError
+        pass
 
     @abstractmethod
     def _init_connection(self, config: BaseConnectorConfig):
         """
         make connection to database
         """
-        raise NotImplementedError
+        pass
 
     @abstractmethod
     def head(self):

pandasai/connectors/yahoo_finance.py

@@ -1,6 +1,5 @@
 import os
 import pandas as pd
-from sqlalchemy import create_engine
 
 from .base import YahooFinanceConnectorConfig, BaseConnector
 import time
@@ -35,25 +34,6 @@ def __init__(self, stock_ticker, where=None, cache_interval: int = 600):
         super().__init__(yahoo_finance_config)
         self.ticker = yfinance.Ticker(self._config.table)
 
-    def _load_connector_config(self, config: YahooFinanceConnectorConfig):
-        """
-        Loads passed Configuration to object
-
-        Args:
-            config (BaseConnectorConfig): Construct config in structure
-
-        """
-        return YahooFinanceConnectorConfig(**config)
-
-    def _init_connection(self, config: YahooFinanceConnectorConfig):
-
-        self._engine = create_engine(
-                f"{config.dialect}://{config.username}:{config.password}@{config.host}"
-                f":{str(config.port)}/{config.database}"
-        )
-
-        self._connection = self._engine.connect()
-
     def head(self):
         """
         Return the head of the data source that the connector is connected to.