Psychopy.hardware.parallel

Coding
1

Hi:

I created a routine to wait for scanner triggers with parallel port communications, following the instructions that appears in Communicating with fMRI — PsychoPy v2022.2.5. When running it, I got the error “ModuleNotFoundError”: No module named ‘psychopy.hardware.parallel’. Why? Must I install another library? I am running psychopy in Windows 10 Pro.

Sincerely,

Gonzalo Rojas Costa

2

Dear Gonzalo,
I am currently having the same problem. Have you managed solving it in the meantime?
Best,
Marius

3

Any answer?

4

Thanks for bringing this to our attention! Those docs may now be outdated. Once we’ve got a working solution here I can update those.

Instead of:

from psychopy.hardware.parallel import ParallelPort

could you please try:

import parallel

and let me know if that works?

Thanks,

Kim

5

Dear Kimberley:

I modified the code to:
“from psychopy.hardware.parallel import parallel
triggers = parallel(address = 0x0378) #Change this address to match the address of the Parallel Port that the device is connected to
pinNumber = 4 #Change to match the pin that is receiving the pulse value sent by your scanner. Set this to None to scan all pins”

and I got the following error:
"File “C:\Users\Public\Documents\CLC\fondecyt\3stroopExp_espanol_emocional_7\stroop_Emotional_lastrun.py”, line 122, in
from psychopy.hardware.parallel import parallel
ModuleNotFoundError: No module named ‘psychopy.hardware.parallel’
################# Experiment ended with exit code 1 [pid:7384] "

6

Just two words instead of six

1 Like
7

Ok. I tested with two words: “import parallel”, and I got the following error:

" File “C:\Users\Public\Documents\CLC\fondecyt\3stroopExp_espanol_emocional_7\stroop_Emotional_lastrun.py”, line 122, in
import parallel
ModuleNotFoundError: No module named ‘parallel’
################ Experiment ended with exit code 1 [pid:22604] #################"

8

Please try

from psychopy import parallel