title: Shuffle two lists in the same order in python
body: <p>I have a question about shuffling, but first, here is my code:</p>
  
  <pre><code>from psychopy import visual, event, gui
  import random, os
  from random import shuffle
  from PIL import Image
  import glob
  a = glob.glob("DDtest/targetimagelist1/*")
  b = glob.glob("DDtest/distractorimagelist1/*")
  target = a
  distractor = b
  pos1 = [-.05,-.05]
  pos2 = [.05, .05]
  
  shuffle(a)
  shuffle(b)
  
  def loop_function_bro():
      win = visual.Window(size=(1280, 800), fullscr=True, screen=0, monitor='testMonitor', color=[-1,-1,-1], colorSpace='rgb')
          distractorstim = visual.ImageStim(win=win,
          image= distractor[i], mask=None,
          ori=0, pos=pos1, size=[0.5,0.5],
          color=[1,1,1], colorSpace='rgb', opacity=1,
          flipHoriz=False, flipVert=False,
          texRes=128, interpolate=True, depth=-1.0)
  
      targetstim= visual.ImageStim(win=win,
          image= target[i], mask=None,
          ori=0, pos=pos2, size=[0.5,0.5],
          color=[1,1,1], colorSpace='rgb', opacity=1,
          flipHoriz=False, flipVert=False,
          texRes=128, interpolate=True, depth=-2.0)
  
      distractorstim.setAutoDraw(True)
      targetstim.setAutoDraw(True)
      win.flip()
      event.waitKeys(keyList = ['space'])
  
  for i in range (2):  
      loop_function_bro()
  </code></pre>
  
  <p>This code randomly shuffles a bunch of images and displays them. However, I would like it is shuffle the images in the same order so that both lists are displayed in the same random order. Is there an way to do this? </p>
  
  <p>Cheers, :)  </p>