Psychopy- Python code error

[Iva09]

Hi all, I am trying to create a visual stimuli in Psychopy which should contain two rectangles(red and green) flashing at different frequencies. These rectangle boxes should contain different set of alphabets (26 alphabets should be spread out to both rectangles).

I am not able to attach alphabets to my rectangles. Somehow code is not working properly. The Psychopy Gui opens and it closes immediately, without showing anything. It cannot take input it seems. I am not able to figure out whether it is because of the way I defined classes or is it due to Psychopy syntax usage.

Here is the code which I am working on.


from psychopy import visual, core
import numpy as np
class TablesGenerator(object):
def_text_table1 = [
['A', 'B', 'C'],
['G', 'H', 'I'],
['M', 'N', 'O'],
['S', 'T', 'U'],
['Y', 'Z', '-']
]

def_text_table2 = [
['D', 'E', 'F'],
['J', 'K', 'L'],
['P', 'Q', 'R'],
['V', 'W', 'X'],
['?', '_', '-']
]
def __init__(self, text_table1=def_text_table1, fullscr=False,
pos=(0, 0), bg_color='red', fg_color='black'):
self.text_table1 = text_table1
self.fullscr = fullscr
self.pos = pos
self.fg_color = fg_color
self.bg_color = bg_color

def __init__(self, text_table2=def_text_table2, fullscr=False,
pos=(0, 0), bg_color='green', fg_color='black'):
self.text_table2 = text_table2
self.fullscr = fullscr
self.pos = pos
self.fg_color = fg_color
self.bg_color = bg_color

# Create a window.
# For configuring and debugging the code turn off full screen.
fullscr = False
win = visual.Window(
[1200,1000],
monitor="testMonitor",
units="deg",
fullscr=fullscr
)
win.setMouseVisible(False)

# Sinusoidal control version.
freq_one = 0.5
freq_two = 1.5
# Colors of the rectangles.
color_one = 'red'
color_two = 'green'
# Positions of the rectanges.
pos_one = (-7, 0)
pos_two = (7, 0)


start = core.getTime()
cnt = 0
while cnt<600:
second = core.getTime() - start

sin_val_one = 1.0+0.5*np.sin(2 * np.pi * second * float(freq_one))
sin_val_two = 1.0+0.5*np.sin(2 * np.pi * second * float(freq_two))

def _create_TextStim1(self, win, text1, font='Monospace', height=10, wrapWidth=600):

text_stim1 = visual.TextStim(win=win, text1=''.join(text_table1), font=font,
height=height, wrapWidth=wrapWidth, color=self.fg_color)

return text_stim1

def _create_TextStim2(self, win, text2, font='Monospace', height=10, wrapWidth=600):

text_stim2 = visual.TextStim(win=win, text2=''.join(text_table2), font=font,
height=height, wrapWidth=wrapWidth, color=self.fg_color)

return text_stim2

rect_one = visual.Rect(
win=win,text1=''.join(text_stim1),
fillColor=color_one,
lineColor=color_one,
size=20,
pos=pos_one,
opacity=sin_val_one
)
rect_two = visual.Rect(
win=win,text2=''.join(text_stim2),
fillColor=color_two,
lineColor=color_two,
size=20,
pos=pos_two,
opacity=sin_val_two
)

rect_one.draw()
rect_two.draw()
win.flip()
cnt += 1

win.close()

Can anyone please help me resolve this error?
Thanks in Advance !