Python（kivy） - 連続キーを押すとループが発生しますか？

Question

スペースコードを一度に1回押すとコードが正常に動作します。ただし、連続して押すと、何らかの並べ替えやクラッシュのループが作成されます。 理由は何か、どうすれば解決できますか？ありがとう!!

import kivy 
import csv 
import time 
# import xlsxwriter 
import sys 

kivy.require('1.0.8') 
from kivy.core.window import Window 
from kivy.uix.widget import Widget 
from kivy.uix.button import Button 
from kivy.app import App 
from kivy.uix.widget import Widget 
from kivy.uix.floatlayout import FloatLayout 
from kivy.core.window import Window, Keyboard 
from kivy.graphics import * 
from kivy.uix.label import Label 
from kivy.uix.textinput import TextInput 
from kivy.properties import StringProperty, ObjectProperty 
from scipy.spatial import distance 
from kivy.clock import Clock 
import numpy 

Window.size = (1280, 1024) 
Window.fullscreen = True 

a = 78.3 
b = 156.6 
c = 234.9 
q = 30 
L = 250 
R = 1015 
O = 630 

stim_list = [1, a, q, c, q, b, q, b, q, c, q, c, q, c, q, a, q, b, q, b, q, c, q, a, q, a, q, b, q, a, q, a, q, b, q, c, 

      q, a, q, b, q, a, q, c, q, c, q, a, q, b, q, b, q, c, q, a, q, a, q, b, q, b, q, a, q, c, q, c, q, c, q, b, 

      q, b, q, c, q, c, q, a, q, b, q, a, q, b, q, b, q, b, q, a, q, c, q, a, q, c, q, c, q, c, q, b, q, b, q, b, 

      q, c, q, b, q, c, q, a, q, a, q, a, q] 

side_list = [1, R, O, L, O, L, O, R, O, R, O, R, O, L, O, R, O, L, O, R, O, L, O, R, O, L, O, R, O, R, O, L, O, L, O, R, 

      O, R, O, R, O, L, O, L, O, R, O, R, O, R, O, L, O, L, O, L, O, L, O, L, O, R, O, L, O, L, O, L, O, R, O, L, 

      O, L, O, R, O, R, O, L, O, L, O, L, O, L, O, R, O, R, O, R, O, L, O, R, O, L, O, R, O, L, O, R, O, R, O, R, 

      O, L, O, L, O, R, O, L, O, R, O, R, O] 

side_list_b = side_list[::-1] 
stim_list_b = stim_list[::-1] 
i = 0 
stimwidth = 45 
initialx = 650 

# workbook = xlsxwriter.Workbook('MT.xlsx') 
# worksheet = workbook.add_worksheet() 
# row = 0 
# col = 0 

class MyKeyboardListener(Widget): 
    def __init__(self, **kwargs): 

     super(MyKeyboardListener, self).__init__(**kwargs) 
     keyboard = Window.request_keyboard(self._keyboard_released, self) 
     self._keyboard = keyboard 
     keyboard.bind(on_key_down=self._keyboard_on_key_down) 
     self._keyboard = Window.request_keyboard(
      self._keyboard_closed, self, 'text') 
     if self._keyboard.widget: 
      # If it exists, this widget is a VKeyboard object which you can use 
      # to change the keyboard layout.  
      pass  
     # self._keyboard.bind(on_key_down=self._on_keyboard_down)  
     self._keyboard.bind(on_key_up=self._on_keyboard_up)  
     self.startTime = time.time()  
     self.endTime = time.time()  
     self.stage = 0  
     self.firstTouch = []  
     self.isPressed = False 
     self.stimPresented = time.time()  
     self.fileName = sys.argv[1]  
     f = open(self.fileName, 'w+')  
     f.close()  

    def _keyboard_closed(self): 
     print('My keyboard have been closed!') 
     self._keyboard.unbind(on_key_down=self._on_keyboard_down) 
     self._keyboard = None 

    # def _on_keyboard_down(self, keyboard, keycode, text, modifiers): 
    #  print('The key', keycode[0], 'have been pressed') 
    #  # print(' - text is %r' % text) 
    #  # print(' - modifiers are %r' % modifiers) 
    #  if (keycode[0] == 32): 
    #   print("sapce is printed") 

    def _on_keyboard_up(self, keyboard, keycode): 
     print('The key', keycode[0], 'have been pressed') 
     # print(' - text is %r' % text) 
     # print(' - modifiers are %r' % modifiers) 
     #space key is up 
     if (keycode[0] == 32): 
      print("sapce is released") 
      self.stage = 1 
      self.startTime = time.time() 
      self.add_diff_row(self.startTime,self.stimPresented) 
      self.isPressed = False 

    def on_touch_down(self, touch): 
     # if touch.is_double_tap: 
     print("touch") 
     touch.multitouch_sim = False 

     if (self.stage == 2): 
      # print(touch.pos) 
      # dst = distance.euclidean(self.firstTouch, touch.pos) 
      # print(dst) 
      a = numpy.array(touch.pos) 
      b = numpy.array(self.firstTouch) 
      dist = numpy.linalg.norm(a - b) 
      print(dist) 
      self.add_diff_row(dist*0.02554, 0) 
      self.stage = 3 

     # screen first press 
     if (self.stage == 1): 
      self.stage = 2 
      self.endTime = time.time() 
      self.add_diff_row(self.endTime, self.startTime) 
      #print(touch.pos) 
      self.firstTouch = touch.pos 

    ### Make the keyboard operatble 
    def _keyboard_released(self): 
     self.focus = False 
     ### replace stim with the next one when the keyboard is pressed 


    def present_stim(self, keyboard, keycode, text, modifiers): 
     self.keycode = 36 
     initialy = 400 - (stim_list_b[i]/2) 
     xlab = Label(text='X', pos=(side_list_b[i], 650)) 
     self.remove_widget(xlab) 
     stimPresented = time.time() 
     with self.canvas: 
      self.canvas.clear() 
      self.add_widget(xlab) 
      Color(1., 1, 1) 
      Rectangle(pos=(initialx, initialy), size=(stimwidth, stim_list_b[i])) 

       #see above 
      self.add_diff_row(self.endTime,self.startTime) 
     ### 

    def _keyboard_on_key_down(self, keyboard, keycode, text, modifiers): 
     global i 
     if(keycode[0] == 32 and self.isPressed): 
      i = i + 1 
      Clock.schedule_once(lambda dt: self.present_stim(keyboard, keycode, text, modifiers), 3) 

     # the space key is first down 
     if (keycode[0] == 32 and not(self.isPressed)): 
      self.isPressed = True 
      # add row of time different 
      # self.add_diff_row(self.endTime,self.startTime) 

    ### 


    def add_diff_row(self, value1, value2): 
     data = [value1 - value2] 
     with open(self.fileName, 'a') as f: 
      print (data) 
      writer = csv.writer(f) 
      writer.writerow(data) 

    ###Move the stim togetehr with fingers 
    def on_touch_move(self, touch): 
     initialy = 400 - (stim_list_b[i]/2) 
     self.canvas.clear() 
     self.myWidget = Widget(size=(100, 100)) 
     self.add_widget(self.myWidget) 

     # calculating fingers space only for stage 1. 
     # if (self.stage == 2): 
     #  #self.add_diff_row(touch.pos[0],0) 
     #  print(touch.pos) 
     #  self.stage = 3 
     # 
     # if (self.stage == 3): 
     #  print(touch.pos) 
     #  self.stage = 4 
     #adding differenc in rows. 
     #print touch.pos[1] 
     if (touch.pos[1] > initialy + stim_list_b[i] + 70) or (touch.pos[1] < initialy - 20): 
      with self.myWidget.canvas: 
       self.add_widget(Label(text='X', pos=(side_list_b[i], 650))) 
       Rectangle(pos=(initialx, initialy), size=(stimwidth, stim_list_b[i])) 
     else: 
      goodposx = touch.pos[0] 
      goodposy = initialy 
      with self.myWidget.canvas: 
       self.add_widget(Label(text='X', pos=(side_list_b[i], 650))) 
       Rectangle(pos=((goodposx - (stimwidth/2)), initialy), size=(stimwidth, stim_list_b[i])) 

       # if 'multitouch_sim' in touch.profile: 
       #  print ('multi touch pressed ') 
       #  touch.multitouch_sim = False 
       #  self.endTime = datetime.datetime.now() 
       #  data = [self.startTime,self.endTime] 
       #  with open(r'res.csv', 'a') as f: 
       #   writer = csv.writer(f) 
       #   writer.writerow(data) 

# workbook.close() 

if __name__ == '__main__': 
    from kivy.base import runTouchApp 
    runTouchApp(MyKeyboardListener()) 

Answer 1

おそらくエラーは機能していますpresent_stimです。この行：

initialy = 400 - (stim_list_b[i]/2) 

アレイインデックスiは、スペースバーが長いために範囲外です。