get_multiple_fundamental_data.py

def getMultipleFunds(tickers, api_token):
    """
    Gets fundamental data from multiple stock tickers given as a list. Returns
    a large dataframe containing the concatenated information for all the given
    tickers.
    """
    
    # Verifying if the list of tickers is compatible
    available = client.get_exchange_symbols("US")

    available = set(i['Code'] for i in available)
    
    tickers = [i for i in tickers if i in available]
    
    # If no valid tickers
    if len(tickers)==0:
        return "No valid tickers found."
    
    # Iterating through the tickers
    dfs = {}
    
    for ticker in tickers:
        
        dfs[ticker] = formatFundamentals(ticker)
        
    return pd.concat(dfs, axis=0)