AttributeError: 'Entity' object has no attribute 'symbol' about alpaca-backtrader-api HOT 12 CLOSED

The new branch is working, several buy and sell orders completed without exceptions. Should be able to run my own script now as well, thanks.

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Hi
every time you see this AttributeError: 'Entity' object has no attribute 'symbol' it means that the data returned from the server is not the expected data (usually it means you get an error message and when trying to wrap it with an Entity this is what you get)

let's first start by making sure that you have the latest version of the python-sdk
do this:
pip install -U git+https://github.com/alpacahq/alpaca-trade-api-python

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and I just pulled the latest code from the master branch into this branch.
so make sure you pull this branch too

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Thanks, I ran the updates on the trade api and this one. It looks like it recovered from two instances of this exception, though it still crashed:

Starting Portfolio Value: 99418.14
***** DATA NOTIF: LIVE
***** DATA NOTIF: LIVE
***** DATA NOTIF: LIVE
2020-06-15T16:42:30, <alpaca_backtrader_api.alpacadata.AlpacaData object at 0x729d9030>
2020-06-15T16:42:30, Crossover below: -0.02233333333333576
2020-06-15T16:42:30, 2020-06-15 16:42:36
ERROR:root:error while consuming ws messages: 'Entity' object has no attribute 'symbol'
2020-06-15T16:42:30, Order submitted/accepted, do nothing
ERROR:root:error while consuming ws messages: 'Entity' object has no attribute 'symbol'
Traceback (most recent call last):
File "multiple_data_strategy_days.py", line 173, in
strategy = cerebro.run(maxcpus=2)
File "/home/pi/.local/lib/python3.7/site-packages/backtrader/cerebro.py", line 1127, in run
runstrat = self.runstrategies(iterstrat)
File "/home/pi/.local/lib/python3.7/site-packages/backtrader/cerebro.py", line 1298, in runstrategies
self._runnext(runstrats)
File "/home/pi/.local/lib/python3.7/site-packages/backtrader/cerebro.py", line 1630, in _runnext
strat._next()
File "/home/pi/.local/lib/python3.7/site-packages/backtrader/strategy.py", line 347, in _next
super(Strategy, self)._next()
File "/home/pi/.local/lib/python3.7/site-packages/backtrader/lineiterator.py", line 265, in _next
self._notify()
File "/home/pi/.local/lib/python3.7/site-packages/backtrader/strategy.py", line 606, in _notify
fundvalue = self.broker.fundvalue
File "/home/pi/.local/lib/python3.7/site-packages/backtrader/broker.py", line 125, in get_fundvalue
return self.getvalue()
File "/home/pi/.local/lib/python3.7/site-packages/alpaca_backtrader_api/alpacabroker.py", line 160, in getvalue
self.value = float(self.o.oapi.get_account().portfolio_value)
File "/home/pi/.local/lib/python3.7/site-packages/alpaca_trade_api/entity.py", line 29, in getattr
return super().getattribute(key)
AttributeError: 'Account' object has no attribute 'portfolio_value'

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does it happen also with the sample code? I would like to execute it locally and try and see if it happens locally too

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I'll try running the sample code tomorrow. In the meantime, here's the script I'm running.

multiple_data_strategy_mod.zip

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Hey, I confirmed that I'm getting the same error on the unmodified multiple_data_strategy script as well.

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Hi, I believe I fixed the issue.
pull from the branch again, and let me know if it works (or not)

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Hi, any update?

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Hey thanks for the patch, it seems to have fixed this error. However, I'm getting a new error when the multiple_data_strategy script places orders. As soon as the order is successfully placed, it quits with this message:

Starting Portfolio Value: 99419.47
2020-06-23T19:34:46, placing trade for AAPL. target size: 5
Traceback (most recent call last):
File "multiple_data_strategy.py", line 101, in
cerebro.run()
File "/home/pi/.local/lib/python3.7/site-packages/backtrader/cerebro.py", line 1127, in run
runstrat = self.runstrategies(iterstrat)
File "/home/pi/.local/lib/python3.7/site-packages/backtrader/cerebro.py", line 1298, in runstrategies
self._runnext(runstrats)
File "/home/pi/.local/lib/python3.7/site-packages/backtrader/cerebro.py", line 1542, in _runnext
drets.append(d.next(ticks=False))
File "/home/pi/.local/lib/python3.7/site-packages/backtrader/feed.py", line 407, in next
ret = self.load()
File "/home/pi/.local/lib/python3.7/site-packages/backtrader/feed.py", line 479, in load
_loadret = self._load()
File "/home/pi/.local/lib/python3.7/site-packages/alpaca_backtrader_api/alpacadata.py", line 302, in _load
ret = self._load_tick(msg)
File "/home/pi/.local/lib/python3.7/site-packages/alpaca_backtrader_api/alpacadata.py", line 389, in _load_tick
dtobj = datetime.utcfromtimestamp(int(msg['time']))
KeyError: 'time'

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could you pull the branch and try again?

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closing this issue. let me know if anything else is required

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