“‘list”对象没有属性“winType”

Question

我试图运行一个python脚本，但是我得到了这个错误。AttributeError: 'list' object has no attribute 'winType'

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该文件的实际内容为：

import time
import pylsl
import bci.open_bci_v3 as bci


#from random import random as rand
from pylsl import StreamInfo, StreamOutlet
from psychopy import prefs
prefs.general['audioLib'] = ['pygame']
from psychopy import visual, core, sound 

import esys_cfg

NUM_CHANNELS = 8
SAMP_RATE = 100

info = StreamInfo('OpenBCI', 'EEG', NUM_CHANNELS, SAMP_RATE, 'float32', 'myuid34234')
outlet = StreamOutlet(info)

#funtion call to start displaying images
#def displayStimuli
# for file in os.listdir('directory'):
# for i in range(0,len(images)):

# def display(files, .....):
#   ex: file_name = ['/dir/dir2/img.png']

window = visual.Window([512, 512])

cfg = esys_cfg.create_config('../stimulus-config/test.yml')
print(cfg.trial_order)
#trial_order = ['one', 'two', 'one']

for element in cfg.trial_order: #loop through all elements in array trial_order
  imageIndex = 0
  for imageIndex in range(len(cfg.trials[element].files)):

    stimulis = cfg.trials[element].stimuli_folder + '/' +   cfg.trials[element].files[imageIndex]
    showStim = visual.ImageStim(window, stimulis)
    showStim.draw([window])
    window.flip()
    core.wait(2.0)

我怎样才能纠正这个错误并运行程序？

Answer 1

错误出现在行中

showStim.draw([window])

它应该显示为

showStim.draw(window)

如果只有一个窗口，只需执行以下操作

showStim.draw()

它在窗口中绘制showStim是在初始化时作为参数给出的。顺便说一句，初始化一个精神病刺激的计算量很大(很容易花费几百毫秒)，所以在脚本开始时做一次，然后在运行时更新相关的方面。在您的情况下，请执行以下操作：

showStim = visual.ImageStim(window)  # initialize the stimulus
for element in cfg.trial_order: #loop through all elements in array trial_order
  imageIndex = 0
  for imageIndex in range(len(cfg.trials[element].files)):
      stimulis = cfg.trials[element].stimuli_folder + '/' +   cfg.trials[element].files[imageIndex]
      showStim.image = stimulus  # update the image

Answer 2

由于您只有一个窗口，因此可以使用：

showStim.window = window # stimulus is now drawn to window 
showStim.draw()

如果您有多个窗口，则可以将相关窗口作为参数传递(代码中的括号是多余的)。

# Note that this just changes **default** window for stimulus.
showStim.draw(win1)
showStim.draw(win2)