Update app.py

app.py

@@ -5,6 +5,9 @@ import yfinance as yf
 import matplotlib.pyplot as plt
 import io
 
+# Install yfinance if not already installed
+subprocess.check_call([sys.executable, "-m", "pip", "install", "yfinance"])
+
 # Load the image classification pipeline
 classifier = pipeline(task="image-classification", model="julien-c/bullish-or-bearish")