# Unable to properly install psychopy on Ubuntu 20.04

**URL:** <https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760>\
**Category:** Builder\
**Tags:** installation\
**Created:** [April 25, 2020, 3:37pm UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760 "2020-04-25T15:37:37Z")\
**Posts on this page:** 19\
**Page:** 1

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**Author:** ![filippogambarota](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/filippogambarota/32/8131_2.png) [@filippogambarota](https://discourse.psychopy.org/u/filippogambarota)\
**Post date:** [April 25, 2020, 3:37pm UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/1 "2020-04-25T15:37:37Z")

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Hello,  
I’m trying to install and launch psychopy on Ubuntu 20.04. I’ve seen that the last package (through apt package manager) is the last version so I’ve insalled it with `apt install psychopy`. When I launch it I get some python dependency errors so I’ve installed all libraries with `pip3 install psychopy`. Now I have psychopy 2020.1.3 installed but when I launch it from terminal I get:

```auto
filippogambarota@filippo-pc:~$ psychopy
05:36:22 PM: Debug: Adding duplicate image handler for 'Windows bitmap file'
05:36:22 PM: Debug: Adding duplicate image handler for 'Windows bitmap file'
05:36:22 PM: Debug: Adding duplicate image handler for 'Windows bitmap file'

```

How can I do?

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**Author:** ![s.bassoon](https://avatars.discourse-cdn.com/v4/letter/s/a88e57/32.png) [@s.bassoon](https://discourse.psychopy.org/u/s.bassoon)\
**Post date:** [June 24, 2020, 3:04pm UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/2 "2020-06-24T15:04:07Z")

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Hi, I am having the same issue. Did you manage to resolve this?

I found this thread here that describes the same issue on Ubuntu 18.04: [Installing psychopy on Linux](https://discourse.psychopy.org/t/installing-psychopy-on-linux/8889)

However, I cannot work out how to view the log described here:

> 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`

And either way it sounds like libwebkitgtk is no longer available anyway

> 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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**Author:** ![filippogambarota](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/filippogambarota/32/8131_2.png) [@filippogambarota](https://discourse.psychopy.org/u/filippogambarota)\
**Post date:** [June 24, 2020, 5:55pm UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/3 "2020-06-24T17:55:03Z")

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Hi! in reality I’ve stopped my attempts and I’m working on a windows machine now. I tried both on Ubuntu 18.04 and 20.04 but without success. Maybe with other methods (conda) this should work

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**Author:** ![s.bassoon](https://avatars.discourse-cdn.com/v4/letter/s/a88e57/32.png) [@s.bassoon](https://discourse.psychopy.org/u/s.bassoon)\
**Post date:** [June 29, 2020, 8:41am UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/4 "2020-06-29T08:41:05Z")

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Yes same here!

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**Author:** ![Walter\_Sena](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/walter_sena/32/9286_2.png) [@Walter\_Sena](https://discourse.psychopy.org/u/Walter_Sena)\
**Post date:** [July 16, 2020, 9:28pm UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/5 "2020-07-16T21:28:28Z")

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Did you manage to find a solution?

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**Author:** ![s.bassoon](https://avatars.discourse-cdn.com/v4/letter/s/a88e57/32.png) [@s.bassoon](https://discourse.psychopy.org/u/s.bassoon)\
**Post date:** [July 17, 2020, 10:21am UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/6 "2020-07-17T10:21:46Z")

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Hi, no sorry, I gave up and went back to Windows.

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**Author:** ![uliw](https://avatars.discourse-cdn.com/v4/letter/u/aca169/32.png) [@uliw](https://discourse.psychopy.org/u/uliw)\
**Post date:** [August 14, 2020, 7:58am UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/7 "2020-08-14T07:58:29Z")

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Very sad. This issue exists over 1 year, see for example this case: 8223.  
Tried today with most recent conda and yml, but again, same fail.  
Psychopy is just not compatible with recent Linuxes, yet.

Oh, wait, [changelog](https://www.psychopy.org/changelog.html) looks promising:

> support for wxPython 4.1

No, I had the most recent already:

> psychopy -v  
> PsychoPy3, version 2020.2.2 (c)Jonathan Peirce 2018, GNU GPL license

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**Author:** ![jon](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/jon/32/22_2.png) [@jon](https://discourse.psychopy.org/u/jon)\
**Post date:** [May 7, 2021, 3:28pm UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/8 "2021-05-07T15:28:46Z")

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Sorry that installing on Debian/Ubuntu hasn’t been easier. I’m afraid the core team developing PsychoPy is very small and busy!

That said, I just tried to install on a VM running a clean install of Ubuntu 20.04 and this appears to work:

```bash
sudo apt-get install psychopy # fetches outdated version from debian
sudo apt-get install python3-pip python3-wxgtk-webview4.0 
# update to latest psychopy:
pip3 install -U psychopy  
 # fix some incompatible lib versions:
pip3 install cffi==1.14.0 psychtoolbox==3.0.16 

```

Those 4 lines should be enough that you can now start PsychoPy and edit experiments!

To get psychtoolbox working for keyboard use you also need the following steps to raise the priority of the experiment process:

```bash
sudo groupadd --force psychtoolbox
sudo usermod -a -G psychtoolbox $USER

```

then do `sudo nano /etc/security/limits.d/99-psychopylimits.conf` and copy/paste in the following text to that file:

```bash
@psychtoolbox - nice -20
@psychtoolbox - rtprio 50
@psychtoolbox - memlock unlimited

```

Thanks all those that contributed to the above lines in one way or another 🙂

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<div class="post-metadata">

**Author:** ![filippogambarota](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/filippogambarota/32/8131_2.png) [@filippogambarota](https://discourse.psychopy.org/u/filippogambarota)\
**Post date:** [July 21, 2021, 3:03pm UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/10 "2021-07-21T15:03:33Z")

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Hi Jon! do you think that this installation snippet could be adapted also for ubuntu 21.04? I have tried it but there are several errors…

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**Author:** ![ferluna90](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/ferluna90/32/1406_2.png) [@ferluna90](https://discourse.psychopy.org/u/ferluna90)\
**Post date:** [December 7, 2021, 4:42pm UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/11 "2021-12-07T16:42:53Z")

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Hi Jon and FIlipp,

I am also having some troubles installing Psychopy correctly in Ubuntu 21.04. Any suggestion?

I followed the guidelines in the site web and also tried the lines copied by Jon, but I can’t open psychopyApp.

Thanks in advance!

Fer

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<div class="post-metadata">

**Author:** ![jon](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/jon/32/22_2.png) [@jon](https://discourse.psychopy.org/u/jon)\
**Post date:** [December 7, 2021, 4:55pm UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/12 "2021-12-07T16:55:10Z")

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Hi @ferluna90 @filippogambarota I haven’t tried to install on 21.04 myself yet. I’d suggest you open that as a separate discussion thread. As a general rule, if there are errors it really helps if you tell us what those errors are (the entire trace)

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<div class="post-metadata">

**Author:** ![Jaden\_Lorenc](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/jaden_lorenc/32/33878_2.png) [@Jaden\_Lorenc](https://discourse.psychopy.org/u/Jaden_Lorenc)\
**Post date:** [April 19, 2022, 11:46pm UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/13 "2022-04-19T23:46:19Z")

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No errors are shown. The program simply crashes immediately upon starting. No errors or messages are shown.

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<div class="post-metadata">

**Author:** ![jon](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/jon/32/22_2.png) [@jon](https://discourse.psychopy.org/u/jon)\
**Post date:** [April 25, 2022, 4:18pm UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/14 "2022-04-25T16:18:38Z")

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PsychoPy tries to save a log of any messages whilst loading. Is anything being stored in that?  
I think on ubuntuyou could check with:

```bash
cat ~/.psychopy3/last_app_load.log

```

but you might need to tweak the file location

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**Author:** ![imolax](https://avatars.discourse-cdn.com/v4/letter/i/ec9cab/32.png) [@imolax](https://discourse.psychopy.org/u/imolax)\
**Post date:** [January 3, 2023, 9:11pm UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/15 "2023-01-03T21:11:41Z")

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Hey There!

I’m having the same issue with Ubuntu (Focal). I had it working on a previous install last fall, but I can’t seem to get the right dependencies this time around. This is the lastest error

ImportError: /lib/x86\_64-linux-gnu/libc.so.6: version `GLIBC\_2.33’ not found (required by /home/imolax/.local/lib/python3.8/site-packages/wx/libwx\_gtk3u\_core-3.2.so.0)

It looks like 2.33 is not available for Ubuntu and that 2.31 is the latest.

Any advice would be much appreciated!

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<div class="post-metadata">

**Author:** ![jon](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/jon/32/22_2.png) [@jon](https://discourse.psychopy.org/u/jon)\
**Post date:** [January 5, 2023, 3:49pm UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/16 "2023-01-05T15:49:46Z")

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Were there any more lines to this error message that might indicate _what_ was trying to import glibc 2.33?

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**Author:** ![imolax](https://avatars.discourse-cdn.com/v4/letter/i/ec9cab/32.png) [@imolax](https://discourse.psychopy.org/u/imolax)\
**Post date:** [January 5, 2023, 4:53pm UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/17 "2023-01-05T16:53:27Z")

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There’s a lot here, so apologies in advance. There are also issues with pyopenssl and cryptography.

```auto
Traceback (most recent call last):
  File "/home/imolax/.local/bin/psychopy", line 8, in <module>
    sys.exit(main())
  File "/home/imolax/.local/lib/python3.8/site-packages/psychopy/app/psychopyApp.py", line 98, in main
    start_app()
  File "/home/imolax/.local/lib/python3.8/site-packages/psychopy/app/psychopyApp.py", line 26, in start_app
    app = startApp(showSplash=showSplash)
  File "/home/imolax/.local/lib/python3.8/site-packages/psychopy/app/ __init__.py", line 84, in startApp
    from psychopy.app._psychopyApp import PsychoPyApp
  File "/home/imolax/.local/lib/python3.8/site-packages/psychopy/app/_psychopyApp.py", line 10, in <module>
    from psychopy.app.colorpicker import PsychoColorPicker
  File "/home/imolax/.local/lib/python3.8/site-packages/psychopy/app/colorpicker/ __init__.py", line 9, in <module>
    import wx
  File "/home/imolax/.local/lib/python3.8/site-packages/wx/ __init__.py", line 17, in <module>
    from wx.core import *
  File "/home/imolax/.local/lib/python3.8/site-packages/wx/core.py", line 12, in <module>
    from ._core import *
ImportError: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.33' not found (required by /home/imolax/.local/lib/python3.8/site-packages/wx/libwx_gtk3u_core-3.2.so.0)
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 72, in apport_excepthook
    from apport.fileutils import likely_packaged, get_recent_crashes
  File "/usr/lib/python3/dist-packages/apport/ __init__.py", line 5, in <module>
    from apport.report import Report
  File "/usr/lib/python3/dist-packages/apport/report.py", line 32, in <module>
    import apport.fileutils
  File "/usr/lib/python3/dist-packages/apport/fileutils.py", line 12, in <module>
    import os, glob, subprocess, os.path, time, pwd, sys, requests_unixsocket
  File "/usr/lib/python3/dist-packages/requests_unixsocket/ __init__.py", line 1, in <module>
    import requests
  File "/usr/lib/python3/dist-packages/requests/ __init__.py", line 95, in <module>
    from urllib3.contrib import pyopenssl
  File "/usr/lib/python3/dist-packages/urllib3/contrib/pyopenssl.py", line 46, in <module>
    import OpenSSL.SSL
  File "/home/imolax/.local/lib/python3.8/site-packages/OpenSSL/ __init__.py", line 8, in <module>
    from OpenSSL import SSL, crypto
  File "/home/imolax/.local/lib/python3.8/site-packages/OpenSSL/SSL.py", line 19, in <module>
    from OpenSSL.crypto import (
  File "/home/imolax/.local/lib/python3.8/site-packages/OpenSSL/crypto.py", line 3253, in <module>
    utils.deprecated(
TypeError: deprecated() got an unexpected keyword argument 'name'

Original exception was:
Traceback (most recent call last):
  File "/home/imolax/.local/bin/psychopy", line 8, in <module>
    sys.exit(main())
  File "/home/imolax/.local/lib/python3.8/site-packages/psychopy/app/psychopyApp.py", line 98, in main
    start_app()
  File "/home/imolax/.local/lib/python3.8/site-packages/psychopy/app/psychopyApp.py", line 26, in start_app
    app = startApp(showSplash=showSplash)
  File "/home/imolax/.local/lib/python3.8/site-packages/psychopy/app/ __init__.py", line 84, in startApp
    from psychopy.app._psychopyApp import PsychoPyApp
  File "/home/imolax/.local/lib/python3.8/site-packages/psychopy/app/_psychopyApp.py", line 10, in <module>
    from psychopy.app.colorpicker import PsychoColorPicker
  File "/home/imolax/.local/lib/python3.8/site-packages/psychopy/app/colorpicker/ __init__.py", line 9, in <module>
    import wx
  File "/home/imolax/.local/lib/python3.8/site-packages/wx/ __init__.py", line 17, in <module>
    from wx.core import *
  File "/home/imolax/.local/lib/python3.8/site-packages/wx/core.py", line 12, in <module>
    from ._core import *
ImportError: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.33' not found (required by /home/imolax/.local/lib/python3.8/site-packages/wx/libwx_gtk3u_core-3.2.so.0)

```

---

<div class="post-metadata">

**Author:** ![jon](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/jon/32/22_2.png) [@jon](https://discourse.psychopy.org/u/jon)\
**Post date:** [January 5, 2023, 9:30pm UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/18 "2023-01-05T21:30:17Z")

</div>

Thanks - that’s what we needed. It looks like a broken wxPython library. How did you install that?

---

<div class="post-metadata">

**Author:** ![bastosfh](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/bastosfh/32/13713_2.png) [@bastosfh](https://discourse.psychopy.org/u/bastosfh)\
**Post date:** [January 12, 2023, 7:40pm UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/19 "2023-01-12T19:40:46Z")

</div>

Hi @imolax,

Perhaps [this installation instructions](https://discourse.psychopy.org/t/how-to-install-psychopy-2022-2-4-on-ubuntu-22-04-using-virtualenv/30125) will interest you.

Best regards

---

<div class="post-metadata">

**Author:** ![imolax](https://avatars.discourse-cdn.com/v4/letter/i/ec9cab/32.png) [@imolax](https://discourse.psychopy.org/u/imolax)\
**Post date:** [January 18, 2023, 8:41pm UTC](https://discourse.psychopy.org/t/unable-to-properly-install-psychopy-on-ubuntu-20-04/12760/20 "2023-01-18T20:41:35Z")

</div>

Sorry for the delay @jon! Most dependencies came pre-installed or were called on by Pyschopy as far as I can tell. This is a brand new Lenovo Thinkpad computer with a factory install of Ubuntu.

Any advice is greatly appreciated!

Update: after a lot of searching, I’m starting to think it’s a pyOpenSSL and cryptography issue. While not identical, there are there applications causing similar errors:

> <https://github.com/pyca/pyopenssl/issues/1154>
>
> \<img width="809" alt="image" src="https://user-images.githubusercontent.com/3293…5519/192464280-6e11fb1d-4967-4a0a-927d-3261c9147ff2.png"\>

These issues started after I tried the psychopy install suggested above in this thread, and I’m wondering if there is anything in that code that calls on incompatible upgrades?

If this is beyond the scope of a psychopy install, no worries. I may just need to reformat/reinstall Ubuntu. It’s affecting apps well beyond pyschopy.