Hi @osercy, in our V4 and V5 SDKs the legacy APIs, including Python, were deprecated in favour of our C-style LeapC API which is closer to the metal, the documentation for LeapC can be found here (V4) and here (V5). As part of the V4 release we also shared our wrapper for the legacy language bindings icluding Python, which makes it easy to integrate legacy-reliant applications with LeapC. You can find the binding tool here: github.com/leapmotion/LeapCxx. Unfortunately, we do not currently have a similar binding available for Gemini V5.
There is a Python API available with our older V2 and V3 SDKs which supports Python 2.7 and I would recommend reading our online documentation here for guidance on how to access the tracking data if you wish to use these versions. There is also a knowledgebase article available here which will guide you through generating a Python 3.3.0 wrapper with SWIG 2.0.9.
If you wish to use the V2 SDK one recent releases of Windows 10 please ensure that you apply this manual hotfix to resolve a compatibility issue between Windows and this older software.