Timers problem

junajo10

Hi,

I would like to add a new timer when a timer begins and eliminate when the first timer finishes. is it possible?

def buildTimers(self):
#Start trading
timers={}
timerStart=self.add_timer(
when=self.p.start,
offset=self.p.offset,
repeat=datetime.timedelta(seconds=360),
weekdays=self.p.weekdays,
)
timers['timerStart']=timerStart.p.tid

def notify_timer(self, timer, when, *args, **kwargs):
for key, value in self.timers.items():
if value==timer.p.tid and key=='timerStart':

timerDimingFrequency=self.add_timer(
when=self.p.start,
offset=self.p.offset,
repeat=datetime.timedelta(seconds=10),
weekdays=self.p.weekdays,
)

I am not receiving the notification of the second timer, do you know what is the problem?

Rgds,

JJ

backtrader

Without the formatting it is difficult to see what the code is actually doing, but in any case the timers are installed during the initialization phase.

Adding timers later is not supported.

junajo10

ok, thanks, i will wait impatiently this feature:

class St(bt.Strategy):

  def buildTimers(self):
    #Start trading
    timers={}
    timerStart=self.add_timer(
            when=self.p.start,
            offset=self.p.offset,
            repeat=self.p.repeat,
            weekdays=self.p.weekdays,
        )
    timers['timerStart']=timerStart.p.tid
   
    #Timer Bin Size
    timerBinSize=self.add_timer(
            when=self.p.start,
            offset=self.p.offset,
            repeat=datetime.timedelta(seconds=self.bin_size),
            weekdays=self.p.weekdays,
        )
    timers['timerBinSize']=timerBinSize.p.tid
    #Start trading
    timerEnd=self.add_timer(
            when=self.p.end,
            offset=self.p.offset,
            repeat=self.p.repeat,
            weekdays=self.p.weekdays,
    )
    timers['timerEnd']=timerEnd.p.tid
    return timers

  def __init__(self):
    self.bin_size=self.p.bin_size
    self.limit_orders = []
    self.order_book=None
    self.timers=self.buildTimers()

 def build_timer2(self):
    timerDimingFrequency=self.add_timer(
            when=self.p.start,
            offset=self.p.offset,
            repeat=datetime.timedelta(seconds=self.bin_size),
            weekdays=self.p.weekdays,
        )
    self.timers['timerDimingFrequency']=timerDimingFrequency.p.tid
  
 def notify_timer(self, timer, when, *args, **kwargs):        
    
    for key, value in self.timers.copy().items():
         print(key,value)
         if value==timer.p.tid:
                if key=='timerStart':
                    print('strategy starts '+str(when) )
                elif key=='timerBinSize':
                    print('bin starts ' +str(when) )
                    self.build_timer2()
                elif key=='timerEnd':