I hope I am understanding your question correctly.
The ArcGIS Runtime SDK for Qt at 10.2.3 provides a C++ API to ArcGIS.
The next release will provide both a Qt C++ and a QML API to ArcGIS.
There is already an open Beta featuring the QML API, and anyone can sign up and participate.
We do not have plans for a Python API for any of the Runtime SDKs.
I hope this helps.