small code clean up and add linting to repo

MarketData.py

@@ -5,7 +5,7 @@ import logging
 import os
 import datetime as dt
 from logging import warning
-from typing import List, Optional, Tuple
+from typing import Dict
 
 import pandas as pd
 import requests as r
@@ -21,10 +21,7 @@ class MarketData:
 
     SYMBOL_REGEX = "[$]([a-zA-Z]{1,4})"
 
-    searched_symbols = {}
-    otc_list = []
-    charts = {}
-    trending_cache = None
+    charts: Dict[Stock, pd.DataFrame] = {}
 
     def __init__(self) -> None:
         """Creates a Symbol Object
@@ -41,9 +38,7 @@ class MarketData:
                 self.MARKETDATA_TOKEN = ""
         except KeyError:
             self.MARKETDATA_TOKEN = ""
-            warning(
-                "Starting without an MarketData.app Token will not allow you to get market data!"
-            )
+            warning("Starting without an MarketData.app Token will not allow you to get market data!")
 
         if self.MARKETDATA_TOKEN != "":
             schedule.every().day.do(self.clear_charts)
@@ -78,7 +73,8 @@ class MarketData:
 
         except r.exceptions.JSONDecodeError as e:
             logging.error(e)
-            return {}
+
+        return {}
 
     def clear_charts(self) -> None:
         """
@@ -131,7 +127,6 @@ class MarketData:
         except KeyError:
             pass
 
-        to_date = dt.datetime.today().strftime("%Y-%m-%d")
         resolution = "5"  # minutes
 
         if data := self.get(