Hi @yangxi, The Tobii Pro SDK Python Bindings are part of the Tobii Pro business department.
This forum is intended for support with the Tobii EyeX and C4 Eye Tracker and associated SDK’s.
Please get in touch with Tobii Pro Support department directly @ http://www.tobiipro.com/contact/contact-support/ for an
answer to your query.
Apologies for the inconvenience.