TypeError: a bytes-like object is required, not ‘str’

Builder
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If this template helps then use it. If not then just delete and start from scratch.

OS (e.g. MacOS):
PsychoPy version (e.g. 2024.1.5):
**Standard Standalone? (y)
**What are you trying to achieve?:**run experiment
here is my error code, can somebody help me?

Traceback (most recent call last):
File “/Users/chrisschafer/Documents/Bachelorthesis/TIM-Test/Experiment/Triad_3.5s_lastrun.py”, line 1481, in
run(
File “/Users/chrisschafer/Documents/Bachelorthesis/TIM-Test/Experiment/Triad_3.5s_lastrun.py”, line 355, in run
output.writerow ([‘ID_A’,‘ID_B’,‘ID_C’,‘IMG_A’,‘IMG_B’,‘IMG_C’,‘sim_AB’,‘sim_BC’,‘sim_AC’,‘difflevel’,‘Pair’])
TypeError: a bytes-like object is required, not ‘str’
################# Experiment ended with exit code 1 [pid:4043] #################

What did you try to make it work?: I tried to check the stimlists, tried older versions, don’t know which version is version “psychopy2”, the creator of this experiment told me to use this version but I don’t know which one to choose, 2022.2.3 or 2020.1.4 or what else there are too many :smiley:

What specifically went wrong when you tried that?:
Include pasted full error message if possible. “That didn’t work” is not enough information.

2

Where does this come from?

3

this are the variables in the csv data for the triads demographics, this is needed for the analysis in the end

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Hello Chris

You need to be more specific. Where and when does your program read/write the string?

The error message tells you that you are treating a byte-like object as a string, which is not possible in Python. Google the error message to see approaches to solving the problem.

Best wishes Jens

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