Installing psychopy on Linux

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1

After trying a lot of stuff, get a lot of different error messages. Now have

python3 psychopyApp.py
04:35:28 PM: Debug: Adding duplicate image handler for 'Windows bitmap file'
04:35:28 PM: Debug: Adding duplicate image handler for 'Windows bitmap file'
04:35:28 PM: Debug: Adding duplicate image handler for 'Windows bitmap file'
[1]    110814 segmentation fault (core dumped)  python3 psychopyApp.py

Any ideas?

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2

I am seeing this same issue with a anaconda3 install of psychopy in Ubuntu 18.04. Were you able to get this resolved? If so, what steps did you take? Thanks!

3

yes, similar issue for me, but when calling psychopy.

10:12:39 AM: Debug: Adding duplicate image handler for 'Windows bitmap file'
10:12:39 AM: Debug: Adding duplicate image handler for 'Windows bitmap file'
10:12:39 AM: Debug: Adding duplicate image handler for 'Windows bitmap file'

I did a pip install of psychopy and then conda install wxpython on Ubuntu 18.04, using Python 3.7.6 in a conda environment.

I also see a quick “window” (not in a window shape) opening and immediately closing…

python3 psychopyApp.py does not work for me (No such file or directory), and I don’t see any segmentation fault (core dumped) message.

maybe related to:

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4

it’s solved now, after a friend pointed me to the troubleshooting page

  1. run python -c "from psychopy import prefs; print(prefs.paths['userPrefsDir'])" to find where your psychopy directory is
  2. look at the contents of last_app_load.log in that directory
  3. in my case, it showed me the true error: libwebkitgtk-1.0-0 was missing, so: sudo apt-get install libwebkitgtk-1.0-0
  4. after that it errored again because it didn’t find any sound library. I fixed that with pip install pygame

Now it’s working as it should :slight_smile:

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5

I am trying to install PsychoPy on Ubuntu 20, the problem is that I cannot install libwebkitgtk. Apparently it is not available. I could manually install it but it has some dependencies that are not available either (e.g. libjavascriptcoregtk-1.0-0, libicu60). I am not sure I am getting into a rabbit hole here. Is there an easier way to solve this issue and have psychopy running on my system?

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