如何访问 Gtk+ 3 / Glade / Python 3 项目中的小部件属性

Question

我用的是经典码example:

from gi.repository import Gtk

class Handler():

    def onDeleteWindow(self, *args):
        Gtk.main_quit(*args)

    def on_button1_clicked(self, button):
        print("Hello World!")

builder = Gtk.Builder()
builder.add_from_file("D:/temp/test1.glade")
builder.connect_signals(Handler())

window = builder.get_object("window1")
window.show_all()

Gtk.main()

一切正常。但是:

如何在事件中更改小部件属性。就像单击它时更改 button1 标签一样。主要是因为事件发生在看不到 window ?
Where/how 以获得关于小部件的所有 Python/Gtk 信息，例如小部件属性名称（即：GtkButton 的标签属性是什么？）？

Answer 1

Where/how to have all the Python/Gtk informations about widgets, like widgets properties names?

https://lazka.github.io/pgi-docs/#Gtk-3.0

How to change a widget property in event. Like change the button1 label on click on it.

button.set_label()

https://lazka.github.io/pgi-docs/#Gtk-3.0/classes/Button.html#Gtk.Button.set_label

如何访问 Gtk+ 3 / Glade / Python 3 项目中的小部件属性

How to access to widgets properties in a Gtk+ 3 / Glade / Python 3 project

python

python-3.x

gtk3

glade