Python run code after particular interval of time (Mimic candles)

 

def round_down_to_interval(dt, interval_minutes):
    remainder = dt.minute % interval_minutes
    minutes_to_current_boundary = remainder

    rounded_dt = dt - timedelta(minutes=minutes_to_current_boundary)

    rounded_dt = rounded_dt.replace(second=0, microsecond=0)

    return rounded_dt


def determine_min(minstr):
    min = 0
    if minstr == "1":
        min = 1
    if minstr == "3":
        min = 3
    if minstr == "5":
        min = 5
    if minstr == "15":
        min = 15
    if minstr == "30":
        min = 30

    return min

Function calling

if current_time>EntryTime and current_time < ExitTime and datetime.now() >= params["runtime"]:
    try:
        time.sleep(int(1))
        presentDay = FyresIntegration.fetchOHLC(symbol=formatedsymbol, resolution=params['TimeFrame'],atrperiod=params['Atr_Period'])
        previousBar = presentDay.iloc[-1]
        currentBar = presentDay.iloc[-1]
        currentBar_close = currentBar[4]
        # print("previousBar: ",previousBar)
        previousBar_close=previousBar[4]
        previousBar_low = previousBar[3]
        previousBar_high = previousBar[2]
        if params['Trade']=="BUY":
            atr = previousBar[6]
            params["SecondarySl"] = previousBar_low-(atr*float(params['Atr_Multiplier']))
        if params['Trade']=="SHORT":
            atr = previousBar[6]
            params["SecondarySl"] = previousBar_high + (atr*float(params['Atr_Multiplier']))
        next_specific_part_time = datetime.now() + timedelta(
                seconds=determine_min(params["TimeFrame"]) * 60)
        next_specific_part_time = round_down_to_interval(next_specific_part_time,
                                                             determine_min(str(params["TimeFrame"])))
        print("Next datafetch time = ", next_specific_part_time)
        params['runtime'] = next_specific_part_time
    except Exception as e:
        print("Error happened in fetching data : ", str(e))
        traceback.print_exc()