Buy function
dataframe.loc[
	(
		(dataframe[‘close’].shift(1)<dataframe[‘bb_lowerband’]) &
		(dataframe[‘close’] > dataframe[‘bb_lowerband’]) &
		(dataframe[‘rsi’] < 50)
	),
	‘buy’] = 1

Sell function

dataframe.loc[
	(
		(dataframe[‘close’]>dataframe[‘bb_upperband’]) |
		(dataframe[‘rsi’] > 60)
	),
	‘sell’] = 1