Is PythonQt deprecated?

PythonQt is under active development, PythonQt 3.0 with Qt 5 and Python 3 support has just been released. Have a look at the PythonQt project page at Sourceforge.

PythonQt is still alive and it's philosophy is much more different than the other two components PySide and PyQt.

The other thing is that Florian efforts of supporting the community is very valuable and he keeps the component update as necessary.

It also does do it's job perfect and you can call a Python function from C++ or call a C++ function from Python and I don't think there would be any more requirements in many of the applications.