Question

这是我的代码：

from psychopy import visual, event, gui, data, core
import random, os
from random import shuffle
from PIL import Image
import glob

a = glob.glob("DDtest/targetimagelist1/*")
b = glob.glob("DDtest/distractorimagelist1/*")
c = glob.glob("DDtest/targetimagelist2/*")
d = glob.glob("DDtest/distractorimagelist3/*")
e = glob.glob("DDtest/targetimagelist4/*")

shuffle(c)
shuffle(d)

ac = a + c
bd = b + d

indices = random.sample(range(len(ac)),len(ac))
ac = list(map(ac.__getitem__, indices))
bd = list(map(bd.__getitem__, indices))

ace = ac+e
shuffle(ace)

target = ac
distractor = bd 
recognition = ace


def studyphase():


    loc = [1, 2]
    location = random.choice(loc)
    if location == 1:
        pos1 = [-.05,-.05]
        pos2 = [.05, .05]
    else:
        pos1 = [.05, .05]
        pos2 = [-.05, -.05]


    win = visual.Window(size=(1920, 1080), fullscr=True, screen=0, monitor='testMonitor', color=[-1,-1,-1])
    distractorstim = visual.ImageStim(win=win, pos=pos1, size=[0.5,0.5])
    distractorstim.autoDraw = True
    targetstim = visual.ImageStim(win=win, pos=pos2, size=[0.5,0.5])
    targetstim.autoDraw = True

    targetstim.image = target[i]
    distractorstim.image = distractor[i]


    win.flip()
    core.wait(.1)

def testphase():

    win = visual.Window(size=(1920, 1080 ), fullscr=True, screen=0, monitor='testMonitor', color=[-1,-1,-1])
    recognitionstim = visual.ImageStim(win=win, pos=[0,0], size=[0.5,0.5])
    recognitionstim.autoDraw = True



    recognitionstim.image = recognition[k]

    old = visual.TextStim(win,text='OLD',pos=[-0.5,-0.5],font='Lucida Console')
    new = visual.TextStim(win,text='NEW', pos=[0.5,-0.5],font='Lucida Console')

    old.draw()
    new.draw()
    win.flip()
    core.wait(.1)


for i in range(len(ac)):
    studyphase()

for k in range(len(ace)):
    testphase()

这应该做的是拍摄一堆图片并在两个不同的阶段（研究和测试）中显示它们，但是，当我运行此代码时，程序在第二个循环的中途崩溃，我得到了以下错误消息：

python(55762,0xa0afe1a8) malloc: *** mach_vm_map(size=8388608) failed (error code=3)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
Fatal Python error: (pygame parachute) Bus Error

但是，如果我独立运行学习循环或测试循环，它们运行正常。有谁知道可能导致此错误的原因？任何帮助将不胜感激。：）

编辑：显然，如果我在循环外移动win命令，它就可以了。

Answer 1

几年前这个问题是raised on the psychopy-users list。很可能是由于图像太大（以像素为单位，而不是兆字节）。因此，如果可能的话，解决方案是将它们缩减到大约您要显示它们的分辨率。我通过谷歌搜索错误信息找到了这个。

在每个试验/演示中生成一个新窗口和几个新的刺激，因为它们是在函数内启动的，并且在循环的每次迭代中都会调用函数。请see my answer to your earlier question获取先创建窗口/刺激的策略，然后更新需要更改的属性。这甚至可以解决这个问题，因为创造新的刺激可能会填满记忆。

致命的Python错误:( pygame降落伞）总线错误

1 个答案: