'Series' object has no attribute 'columns'

[Nairpic]

Hi there,

I am using the bt.Backtest(bt_strategy, price_data)

For price_data I am trying to use a Data Frame of my own, extracted from a broker (Oanda) in order to test on batches of timeframes and instruments I want.

The only thing is after edits of the Dataframe in order to make it similar to the bt.get option my price_data which stores the Dataframe doesn't work and gives me the following error: 'Series' object has no attribute 'columns'

#I changed the index format to make my strategy with BT work
EURUSD_df.index=pd.to_datetime(EURUSD_df.index, format = '%Y-%m-%d').strftime('%Y-%m-%d')
EURUSD_df.tail()

close	high	low	open
2018-12-27	1.14448	1.14728	1.14271	1.14296
2018-12-30	1.14649	1.14696	1.14216	1.14372
2019-01-01	1.13447	1.14970	1.13250	1.14649
2019-01-02	1.13942	1.14112	1.13077	1.13431
2019-01-03	1.13951	1.14191	1.13457	1.13930

import talib

!pip install bt
import bt

import matplotlib.pyplot as plt

EMA_short=talib.EMA(EURUSD_df['close'],timeperiod=10).to_frame()
EMA_long=talib.EMA(EURUSD_df['close'],timeperiod=40).to_frame()

signal=EMA_long.copy()
signal[EMA_long.isnull()]=0
signal[EMA_short>EMA_long]=1
signal[EMA_short<EMA_long]=-1
combined_df=bt.merge(signal,EURUSD_df["close"],EMA_short,EMA_long)
combined_df.columns=["Signal","Price","EMA_short","EMA_long"]
combined_df.plot(secondary_y=["Signal"])

print(EURUSD_df[['close']])
#EURUSD_df=EURUSD_df['close'].reset_index
#print(EURUSD_df['close'])
price_data=EURUSD_df['close']
price_data=price_data.append(pd.Series(name='NameOfNewRow'))
print(price_data)

bt_strategy = bt.Strategy('EMA_crossover',
                          [bt.algos.WeighTarget(signal),
                          bt.algos.Rebalance()])
bt_backtest = bt.Backtest(bt_strategy,price_data)
bt_result = bt.run(bt_backtest)
bt_result.plot(title='Backtest result')

Can someone help/guide me, please?

Much appreciated!

Ciprian

[run-out]

@nairpic I think you are in the wrong forum.

pip install bt

is not backtrader, it's bt. https://github.com/pmorissette/bt