I understand the problem now. No, psychopy does not have anything in regards to fixation/saccade detection, other than what you would hard code (see example: Retrieve Fixation Events using Iohub - #6 by DK_allday ). Depending on what you want specifically you can use the ROI area to determine if a fixation had occurred, or if they were supposed to fixate in that area, and left it (you are only limited by your coding skill and imagination haha).
The other thing would be a separate machine that would analyze eye data and sent a trigger/data to psychopy, which is then appended to the trial info, etc.
Take your binocular HDF file, and put that into Tobii pro lab and analyze the data for detecting fixations/saccades/blinks.
Issac