Hi everyone,
I’ve found some time to play with the installation of PsychoPy in Ubuntu 21.10 and, as it went well, I thought someone else could need this. Hopefully, this set of instructions will also work with Ubuntu 22.04, the upcoming LTS version.
It worked in a clean install of Ubuntu 21.10 and PsychoPy 2021.2.3.
First, install outdated psychopy from Ubuntu’s repository
sudo apt install psychopy
Install pip3
sudo apt install pip3
Now, install the packages needed to compile wxPython
sudo apt install python3-pip make gcc libgtk-3-dev libgstreamer-gl1.0-0 freeglut3 freeglut3-dev python3-gst-1.0 libglib2.0-dev ubuntu-restricted-extras libgstreamer-plugins-base1.0-dev
To compile/build your wxPython, “ask” pip3 to force reinstall. Otherwise, it is going to use the xwPython version from Ubuntu’s repository (which won’t work - at least, not for me). This is going to take a while, so press enter and go have some coffee 
pip3 install -v --user -- force-reinstall wxPython
Install Psychtoolbox bindings
sudo apt install libusb-1.0-0-dev portaudio19-dev libasound2-dev
Update psychopy using pip3
pip3 install -U psychopy
Raise the priority of the experiment process
sudo groupadd --force psychtoolbox
sudo usermod -a -G psychtoolbox $USER
Create a 99-psychopylimits.conf file using gedit:
sudo gedit /etc/security/limits.d/99-psychopylimits.conf
Paste in the following text to that file and save it:
@psychtoolbox - nice -20
@psychtoolbox - rtprio 50
@psychtoolbox - memlock unlimited
Finally, to avoid Builder to crash when you insert a $ into a textbox, edit the paramCtrls.py file ([python-package-directory]/psychopy/app/builder/dialogs/paramCtrls.py).
Open the file using gedit and find where updateCodeFont is defined. You just have to comment one line and add another, as indicated below:
def updateCodeFont(self, valType):
"""Style input box according to code wanted"""
if not hasattr(self, "SetFont"):
# Skip if font not applicable to object type
return
if self.GetName() == "name":
# Name is never code
valType = "str"
if valType == "code" or hasattr(self, "dollarLbl"):
# Set font
# self.SetFont(self.GetTopLevelParent().app._codeFont.Bold()) # Comment this line
self.SetFont(self.GetTopLevelParent().app._mainFont) # Add this line
else:
self.SetFont(self.GetTopLevelParent().app._mainFont)
Now, you are good to go
Have fun using Builder in Ubuntu 21.10!
