Expyriment depends on a couple of software packages which have to be installed on the system. These packages are:
Optional additional packages include PySerial_ (>=2.5) (to use serial port communication), PyParallel (>=0.2) (to use parallel port communication) and NumPy (>=1.6) (to use data preprocessing). Please be aware that Expyriment plugins (extras) might have additional dependencies.
You can find platform-specific instructions for installing Expyriment here: