Code Editor for app.py

import streamlit as st
from yahoo_fin.stock_info import get_live_price
import time

# Set page title and config 
st.set_page_config(page_title="Stock Price Viewer", layout="centered")

# Add custom CSS for styling
st.markdown("""
    <style>
    .big-font {
        font-size:30px !important;
        font-weight: bold;
    }
    </style>
    """, unsafe_allow_html=True)

# App title
st.title("Real-Time Stock Price Viewer")

# Input field for stock ticker
ticker = st.text_input("Enter Stock Ticker Symbol:", value="").upper()

if st.button("Get Price") or ticker:
    if ticker:
        try:
            # Show spinner while fetching data
            with st.spinner(f'Fetching price for {ticker}...'):
                # Get the live price
                price = get_live_price(ticker)
                
                # Display results
                st.markdown("---")
                st.markdown(f"<p class='big-font'>{ticker}</p>", unsafe_allow_html=True)
                st.markdown(f"<p class='big-font'>${price:.2f}</p>", unsafe_allow_html=True)
                
                # Add timestamp
                st.text(f"Last updated: {time.strftime('%Y-%m-%d %H:%M:%S')}")
                
        except Exception as e:
            st.error(f"Error: Could not fetch price for '{ticker}'. Please check if the ticker symbol is correct.")
    else:
        st.warning("Please enter a ticker symbol")

# Add usage instructions
with st.expander("How to use"):
    st.write("""
    1. Enter a valid stock ticker symbol (e.g., AAPL for Apple, GOOGL for Google)
    2. Click 'Get Price' or press Enter
    3. The current stock price will be displayed below
    
    Note: Prices are pulled in real-time from Yahoo Finance
    """)