python make candle from tick data code example

Example: 1 min candle resampling pandas

def ohlcVolume(x):
    if len(x):
        ohlc={ "open":x["open"][0],"high":max(x["high"]),"low":min(x["low"]),"close":x["close"][-1],"volume":sum(x["volume"])}
        return pd.Series(ohlc)

daily=df.resample('1D').apply(ohlcVolume)