EDIT: Here's a minimal reproducible example that should throw the same error. I have tried this on two different computers, and it throws the exact same error.
from psychopy import visual, core, event, data, gui
import pandas as pd
# Use a dialog box to get participant number
dlg = gui.Dlg(title="Participant Information")
dlg.addField("Participant Number:")
dlg.show()
if dlg.OK:
participant_number = dlg.data[0]
else:
print("User canceled, exiting...")
core.quit()
# Load stimuli from stimuli.xlsx
stimuli_df = pd.read_excel("stimuli.xlsx")
# Define experiment phases and display durations
phases = [500, 750, 1000, 1250]
# Initialize PsychoPy window
win = visual.Window(size=(800, 600), fullscr=False, color="white")
# Initialize text stimulus
text_stim = visual.TextStim(win, text="", height=30)
# Initialize data storage
output_data = []
# Loop through each phase
for phase_num, duration in enumerate(phases, start=1):
for word in stimuli_df["Word"]:
# Display stimuli word
text_stim.text = word
text_stim.draw()
win.flip()
# Record onset time using core.Clock
trial_clock = core.Clock()
trial_clock.reset()
core.wait(duration / 1000) # Convert duration to seconds
# Display prompt and collect participant response
text_stim.text = "Please type the word you just saw. When you have finished, press ENTER."
text_stim.draw()
win.flip()
# Record response time
response_clock = core.Clock()
response_clock.reset()
response = event.getText()
response_time = response_clock.getTime()
# Append data to output
output_data.append({"Phase": phase_num, "Word": word, "Response": response, "ResponseTime": response_time})
# Save data to output text file
output_df = pd.DataFrame(output_data)
output_df.to_csv(f"participant_{participant_number}_output.csv", index=False)
# Close PsychoPy window
win.close()
I am running into a GLException error while running a script in Psychopy. The script is intended to test the duration of exposure needed for participants to be able to successfully recall nonce words of various syllable-numbers. The error recurs in Windows 10 and 11. My system has enough memory, and all the fonts seems to be installed properly too…
pyglet.gl.lib.GLException: b'invalid value'
################ Experiment ended with exit code 1 [pid:18900] #################
Here’s the full output in case that helps. Any help is appreciated.
Traceback (most recent call last):
Hello from the pygame community. https://www.pygame.org/contribute.html
10.4986 WARNING Monitor specification not found. Creating a temporary one...
File "C:\Users\LENOVO\Desktop\EpochExp\responseEpoch_1.1_RT_GUI.py", line 45, in <module>
text_stim.text = word
File "C:\Program Files\PsychoPy\lib\site-packages\psychopy\tools\attributetools.py", line 27, in __set__
newValue = self.func(obj, value)
File "C:\Program Files\PsychoPy\lib\site-packages\psychopy\visual\text.py", line 381, in text
self._setTextShaders(text)
File "C:\Program Files\PsychoPy\lib\site-packages\psychopy\visual\text.py", line 399, in _setTextShaders
self._pygletTextObj = pyglet.text.Label(
File "C:\Program Files\PsychoPy\lib\site-packages\pyglet\text\__init__.py", line 456, in __init__
self.document.set_style(0, len(self.document.text), {
File "C:\Program Files\PsychoPy\lib\site-packages\pyglet\text\document.py", line 603, in set_style
return super(UnformattedDocument, self).set_style(
File "C:\Program Files\PsychoPy\lib\site-packages\pyglet\text\document.py", line 512, in set_style
self.dispatch_event('on_style_text', start, end, attributes)
File "C:\Program Files\PsychoPy\lib\site-packages\pyglet\event.py", line 418, in dispatch_event
if handler(*args):
File "C:\Program Files\PsychoPy\lib\site-packages\pyglet\text\layout.py", line 1073, in on_style_text
self._init_document()
File "C:\Program Files\PsychoPy\lib\site-packages\pyglet\text\layout.py", line 1043, in _init_document
self._update()
File "C:\Program Files\PsychoPy\lib\site-packages\pyglet\text\layout.py", line 966, in _update
lines = self._get_lines()
File "C:\Program Files\PsychoPy\lib\site-packages\pyglet\text\layout.py", line 942, in _get_lines
glyphs = self._get_glyphs()
File "C:\Program Files\PsychoPy\lib\site-packages\pyglet\text\layout.py", line 1085, in _get_glyphs
glyphs.extend(font.get_glyphs(text[start:end]))
File "C:\Program Files\PsychoPy\lib\site-packages\pyglet\font\base.py", line 394, in get_glyphs
self.glyphs[c] = glyph_renderer.render(c)
File "C:\Program Files\PsychoPy\lib\site-packages\pyglet\font\win32.py", line 471, in render
glyph = self.font.create_glyph(image)
File "C:\Program Files\PsychoPy\lib\site-packages\pyglet\font\base.py", line 364, in create_glyph
glyph = texture.fit(image)
File "C:\Program Files\PsychoPy\lib\site-packages\pyglet\font\base.py", line 254, in fit
region.blit_into(image, 0, 0, 0)
File "C:\Program Files\PsychoPy\lib\site-packages\pyglet\image\__init__.py", line 1736, in blit_into
self.owner.blit_into(source, x + self.x, y + self.y, z + self.z)
File "C:\Program Files\PsychoPy\lib\site-packages\pyglet\image\__init__.py", line 1629, in blit_into
source.blit_to_texture(self.target, self.level, x, y, z)
File "C:\Program Files\PsychoPy\lib\site-packages\pyglet\image\__init__.py", line 1000, in blit_to_texture
glTexSubImage2D(target, level,
File "C:\Program Files\PsychoPy\lib\site-packages\pyglet\gl\lib.py", line 106, in errcheck
raise GLException(msg)
pyglet.gl.lib.GLException: b'invalid value'
################ Experiment ended with exit code 1 [pid:18900] #################
Tried running the script in Coder (Standalone PsychoPy-2023.2.3, 64-bit), on Windows 11. Graphics driver is updated, and all fonts are installed.