Help. Live Trade Alpaca: 'Account' object has no attribute 'portfolio_value'

wizardmichael

Hi. I have some issue connecting to my alpaca account using alpaca_backtrader_api. For examples, I would like to check amount of cash and portfolio value in my alpaca live account. With the following code:

import alpaca_backtrader_api
import backtrader as bt
from alpaca_account import paper_account, money_account

ALPACA_API_KEY = money_account['api_key']
ALPACA_SECRET_KEY = money_account['api_secret']

if __name__ == '__main__':

    cerebro = bt.Cerebro()
    store = alpaca_backtrader_api.AlpacaStore(
        key_id=ALPACA_API_KEY,
        secret_key=ALPACA_SECRET_KEY,
        paper= False
    )
    
    broker = store.getbroker()  # or just alpaca_backtrader_api.AlpacaBroker()
    cerebro.setbroker(broker)

    print('Available Cash: %.2f' % cerebro.broker.getcash())
    print('Starting Portfolio Value: %.2f' % cerebro.broker.getvalue())

It gave me an error. AttributeError: 'Account' object has no attribute 'portfolio_value', and Available Cash: 0.00.

However, if I use alpaca_trade_api, with the following code,


import alpaca_trade_api as tradeapi
from alpaca_account import paper_account, money_account

ALPACA_API_KEY = money_account['api_key']
ALPACA_SECRET_KEY = money_account['api_secret']


api = tradeapi.REST(ALPACA_API_KEY, ALPACA_SECRET_KEY, 'https://api.alpaca.markets')
account = api.get_account()
print('${} is available as buying power.'.format(account.buying_power))

There would be no error, and the result shows "$1000 is available as buying power." Here are the versions of my packages:

alpaca-backtrader-api=0.13.1=pypi_0
alpaca-trade-api=0.52.0=pypi_0
backtrader=1.9.76.123=pypi_0
matplotlib=3.2.2=pypi_0
numpy=1.19.4=pypi_0
pandas=1.1.5=pypi_0
python=3.6.12=h5500b2f_2
scipy=1.5.4=pypi_0
websocket-client=0.58.0=pypi_0
websockets=8.1=pypi_0

I believe that it should be a small issue, but I got stuck for several days, and could not find solutions online. I greatly appreciate if someone could help me out. Thank you!

run-out

@wizardmichael said in Help. Live Trade Alpaca: 'Account' object has no attribute 'portfolio_value':

cerebro.setbroker(broker)

CEREBRO stores information at startup to be used when running. For example, I could load 3 strategies in cerebro and they would just sit there as class files waiting to be used once cerebro runs.

I believe your issue is you are just putting your broker class in a list in cerebro, and it hasn't been run.

wizardmichael

@run-out Thanks!