Question

I would like to write a QML Extension using only Python. I know how to do this in C++, but not in Python. Is this even possible? Here’s a vague idea of what I’m looking for.

class NewToQML(QObject):
    Q_PROPERTY(int root READ num WRITE setNum NOTIFY numChanged REVISION 1)

And in test.qml:

import MyQmlAdditions 1.0
NewToQML {
    num: 7;
}

[edit]
I would like to use this QML addition to accomplish for instance changing the cursor when the mouse is over the graphical object (NewToQML).

Answer 1

I found the answer a while back on nabble answered by Phil Thompson-5 with a good explanation/reasoning following by Giovanni Bajo.

Short answer: PyQt does not support qmlRegisterType as of 4.7 and earlier versions.

However, PySide does have this functionality as shown here.