Error message .dv and data

Alpaca Trading
1

hi, this part of my code gives me headache but i guess because i am a beginner/ the .dv and ‘data’ is returning errors in replit. could someone help? thank you

Convert to DataFrame - handle different API response formats

try:
    df = bars.dv <====================
except AttributeError:
    # Fallback for newer API versions
    import pandas as pd
    import pandas as pd
    if hasattr(bars, 'data') and isinstance(bars.data, dict) and symbol in bars.data: <=====
        bars_data = bars.data[symbol]    <=====
        df = pd.DataFrame([{
            'timestamp': bar.timestamp,
            'open': bar.open,
            'high': bar.high,
            'low': bar.low,
            'close': bar.close,
            'volume': bar.volume,
            'symbol': symbol
                } for bar in bars_data])
        df.set_index('timestamp', inplace=True)
    else:
        df = None
    if df is None:
        raise Exception("No data for symbol")