Pandas time zone error when running the example about alpaca-backtrader-api HOT 8 CLOSED

Never mind, it seems adding tz argument in DataFactory solves this

timezone = pytz.timezone("America/Los_Angeles")
data0 = DataFactory(dataname='AAPL', historical=True, fromdate=pd.Timestamp('2018-11-15'), timeframe=bt.TimeFrame.Days, tz=timezone)

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Was experiencing the same error and followed your fix which seems to get me to new errors.
I've added in the code you've pasted above but now when I run the example I get pytz is not defined. I try installing pytz to see if that fixes via: pip3 install pytz but pip3 tells me it's already installed. Any ideas?

from alpaca-backtrader-api.

try import pytz

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yeah unfortunately that gets me back to the first error you encountered:
Adding import pytz to the top of my example, when I now run I get:
"Cannot compare tz-naive and tz-aware datetime-like objects" TypeError: Cannot compare tz-naive and tz-aware datetime-like objects

from alpaca-backtrader-api.

my entire modified script:
`import alpaca_backtrader_api
import backtrader as bt
from datetime import datetime
import pytz

ALPACA_API_KEY = ''
ALPACA_SECRET_KEY = ''
ALPACA_PAPER = True

class SmaCross(bt.SignalStrategy):
def init(self):
sma1, sma2 = bt.ind.SMA(period=10), bt.ind.SMA(period=30)
crossover = bt.ind.CrossOver(sma1, sma2)
self.signal_add(bt.SIGNAL_LONG, crossover)

cerebro = bt.Cerebro()
cerebro.addstrategy(SmaCross)

store = alpaca_backtrader_api.AlpacaStore(
key_id=ALPACA_API_KEY,
secret_key=ALPACA_SECRET_KEY,
paper=ALPACA_PAPER
)

if not ALPACA_PAPER:
broker = store.getbroker() # or just alpaca_backtrader_api.AlpacaBroker()
cerebro.setbroker(broker)

DataFactory = store.getdata # or use alpaca_backtrader_api.AlpacaData
timezone = pytz.timezone("America/New_York")
data0 = DataFactory(dataname='AAPL', historical=True, fromdate=datetime(
2015, 1, 1), timeframe=bt.TimeFrame.Days, tz=timezone)
cerebro.adddata(data0)

print('Starting Portfolio Value: %.2f' % cerebro.broker.getvalue())
cerebro.run()
print('Final Portfolio Value: %.2f' % cerebro.broker.getvalue())
cerebro.plot()
`

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wondering if this has to do with your pandas version, and/or python version. This is what I have on my colab notebook.
pandas version 0.25.3
python version 3.6.9 (default, Nov 7 2019, 10:44:02)

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Confirming this fails for me with pandas version >1, maybe try to downgrade your pandas install

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phenomenal! It works with pandas version '0.25.3'
Thanks very much for your help

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