onset score calculation | Python Fiddle

#main
    def calculate(self):
        threshold = 0.15
        self.performance = audionset.AudioPiece(WAVE_OUTPUT_FILENAME, threshold)
        while self.performance.onset_count != self.usultemplate.onset_count:
            if self.performance.onset_count < self.usultemplate.onset_count:
                print("Decrease threshold.", threshold)
                if threshold - 0.02 <= 0:
                    print("Signal not good.")
                    break
                else:
                    threshold -= 0.02
            else:
                print("Increase threshold.", threshold)
                threshold += 0.035
            q = Queue.Queue()
            tt = threading.Thread(target=audionset.AudioPiece, args=[WAVE_OUTPUT_FILENAME, threshold, q])
            tt.start()
            tt.join()
            self.performance = q.get()
            print(self.performance.onset_count, self.usultemplate.onset_count)

self.performance.stretchtimes(self.usultemplate)
        print(self.performance.stretched_onset_times)
        print(self.usultemplate.onset_times)
        score = self.performance.compare(self.usultemplate, self.checkbox_stretch.isChecked())  #HERE IS THE COMPARISON
        
-----------------
#audionset class

@staticmethod
    def similarityscore(difflist, bpm):

diffrange = 60/bpm	#time for 1/4th beat
        scorelist = []
        for diff_ in difflist:
            diff = abs(diff_)
            if diff < diffrange/32:		#128th
                scorelist.append(1)
            elif diff < diffrange/16:   #64th
                scorelist.append(0.9)
            elif diff < diffrange/8:    #32th
                scorelist.append(0.8)
            elif diff < diffrange/4:    #16th
                scorelist.append(0.3)
            elif diff < diffrange/2:    #4th
                scorelist.append(0.2)
            else:
                scorelist.append(0.1)
        print(scorelist)
        score = float(sum(scorelist[1:-1]))/(len(scorelist)-2)
        print(score)
        return score

def compare(self, other, stretch):
        difflist = []

if stretch == 1:
            print("Time align: ", stretch)
            self.final_onset_signal = self.stretched_onset_signal
            self.final_onset_times = self.stretched_onset_times
        else:
            print("Time align: ", stretch)
            self.final_onset_signal = self.shifted_onset_signal
            self.final_onset_times = self.shifted_onset_times

for i in range(0, other.onset_count):
            difflist.append(other.onset_times[i] - self.final_onset_times[i])
        print("Difflist:")
        print(difflist)
        return self.similarityscore(difflist, other.onset_bpm)

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