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Several installations of Psychopy - Windows

Hi there.
I was wondering if it is possible to have several versions of Psychopy installed on my Windows PC.
I have tried several solutions, without any luck. Every time I try to install an older version of Psychopy, it registers that I have Psychopy installed.
I don’t know if it’s possible to create different Shortscuts, that refers to different Site-Packages.

  • Mathias

This isn’t possible with standalone installations on windows I’m afraid. If you’re using Coder though you can install the latest version and then determine the version of he library to use at the top of your script (that doesn’t really work for Builder though)

Thanks for the answer Jon. Though I don’t know what you mean by “determine the version of the library at the top of my script”. How do I determine that? Do you have an exact example?

  • Mathias

I mean you can specify the version like this:

import psychopy
psychopy.useVersion('1.80.02')
from psychopy import visual, core, event
#carry on as usual

that way you don’t need to install multiple versions - they’re all there for you.