my.py

import pandas as pd

def calc(*_ohlcv):
    data = dict(list(zip(['open','high','low','close','volume'],_ohlcv)))
    ohlc = pd.DataFrame(data)
    stratData = pd.DataFrame(index=ohlc.index)
    stratData['cc'] = 100*ohlc['close'].pct_change()
    stratData['co'] = 100*(ohlc['open']/ohlc['close'].shift(1)-1)
    idx = (stratData['cc']<-0.25).shift(1) & (stratData['co'] < -0.1)
    idx[0] = False
    stratData['goLong'] = idx
    return [int(elem) for elem in stratData['goLong']]