Update app.py

app.py

@@ -7,7 +7,6 @@ import csv
 import threading
 from huggingface_hub import HfApi
 import os
-import io
 
 # Hugging Face Info
 HF_USERNAME = "abolfazle80"
@@ -21,6 +20,9 @@ markets = ['DOTUSDT', 'BTCUSDT', 'ADAUSDT', 'BNBUSDT', 'SUIUSDT', 'XRPUSDT']
 # Initialize Hugging Face API
 api = HfApi()
 
+# 🔹 Initialize loop control variable
+loop_running = False  
+
 # Function to fetch data from CoinEx
 def get_crypto_price_from_coinex(symbol):
     url = 'https://api.coinex.com/v1/market/ticker'
@@ -113,6 +115,7 @@ st.title("🔄 Live Cryptocurrency Data Fetching")
 
 # Start Fetching Button
 if st.button("Start Fetching Data"):
+    global loop_running
     if not loop_running:
         loop_running = True
         threading.Thread(target=fetch_data, daemon=True).start()