Update app.py

app.py

@@ -64,7 +64,11 @@ def fetch_data(symbol='ETHUSDT', interval='1h', start_date='2021-01-01'):
         response = requests.get(url)
         data = response.json()
         if not data:
+            print("Fetched data is empty. Please check the API request and parameters.")
             break
+        else:
+            print("Fetched data successfully.")
+            print(data.head())
         klines += data
         start_date = datetime.utcfromtimestamp(data[-1][6] / 1000)
     
@@ -129,7 +133,6 @@ def run_model():
             break
         
 if __name__ == "__main__":
-    print("Sajid is great")
     data = fetch_data()
     data = calculate_ema(data)
     if len(data) < 50: