Gtk3 replace child widget with another widget

Question

I\'m looking for a way to remove a widget from its parent (whatever that may be - a VBox, a Grid, ...) and add a substitute widget in its place.

I found this answer,

Answer 1

Thanks to the information provided by ptomato's answer, here's the working code:

def replace_widget(old, new):
    parent = old.get_parent()

    props = {}
    for key in Gtk.ContainerClass.list_child_properties(type(parent)):
        props[key.name] = parent.child_get_property(old, key.name)

    parent.remove(old)
    parent.add(new)

    for name, value in props.iteritems():
        parent.child_set_property(new, name, value)