All of the points you raise are solved by my open source library [1]. It's a Python wrapper around Qt that in particular solves the deployment problem. With it,

All of the points you raise are solved by my open source library [1]. It's a Python wrapper around Qt that in particular solves the deployment problem. With it, you use Qt under the LGPL, and thus typically do not need a Qt license. [1]: https://github.com/mherrmann/fbs https://github.com/mherrmann/fbs