Add NSE price sourcing tool

app.py

@@ -19,6 +19,32 @@ def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return
     """
     return "What magic will you build ?"
 
+## Copied from https://huggingface.co/spaces/iamnamas/nse_stockprice_agent
+@tool
+def nse_stock_price_tool(stock_ticker:str)-> str: 
+    """A tool that is used to retrieve the latest closing price of a stock based on the stock ticker from the Indian Stock Exchange (NSE).
+    example: 'RELIANCE.NS'
+    Args:
+        stock_ticker: The stock ticker/symbol for the stock listed in NSE. The exact string input needs to be provided to the function.
+    Returns:
+        result_string: A string containing the stock_ticker along with the amount in Rupees.
+        example: "RELIANCE NS: 1237.22 Rupees."
+    """
+    try:
+        import math
+        import yfinance as yf
+        stock_symbol = stock_ticker
+        data = yf.download(tickers=stock_symbol, period='1d', interval='1m')
+        if len(data):
+            latest_data = data.tail(1)
+            latest_price = latest_data['Close'].values[0]   
+            return (f"{stock_symbol}: {round(latest_price, 2)} Rupees.")
+        else:
+            return "INVALID TICKER/STOCK"
+    except Exception as e:
+        traceback.print_exc()
+        return "INVALID REQUEST"
+        
 # Writing my first custom tool
 @tool
 def toss_a_die(k: int) -> int:
@@ -51,6 +77,7 @@ def get_current_time_in_timezone(timezone: str) -> str:
 
 
 final_answer = FinalAnswerTool()
+
 model = HfApiModel(
     max_tokens=1048,
     temperature=0.5,