What is "psychopy"

PsychoPy is an open source software package, written in Python programming language, for the generation of experiments for neuroscience and experimental psychology.

Unlike most packages it provides users with a choice of interface; generate experiments by writing Python scripts or through a graphical interface which will generate a script for them (or by a combination of the two).

Its platform independence is achieved through the use of the wxPython widget library for the application and OpenGL for graphics calls.