GTK3的蟒蛇

Question

否“HeaderBar”属性我有这个简单的窗口 -

from gi.repository import Gtk 

class Simplicity(Gtk.Window): 

    def __init__(self): 
     Gtk.Window.__init__(self) 

     hb = Gtk.HeaderBar() 
     hb.props.show_close_button = True 
     hb.props.title = "HeaderBar example" 
     self.set_titlebar(hb) 

     self.connect("delete-event", Gtk.main_quit) 

window = Simplicity() 
window.show_all() 

Gtk.main() 

但是当我运行它，它给了我一个错误 -

Traceback (most recent call last): 
    File "simplicity.py", line 17, in <module> 
    window = Simplicity() 
    File "simplicity.py", line 10, in __init__ 
    hb = Gtk.HeaderBar() 
    File "/usr/lib/python2.7/dist-packages/gi/module.py", line 243, in __getattr__ 
    return getattr(self._introspection_module, name) 
    File "/usr/lib/python2.7/dist-packages/gi/module.py", line 105, in __getattr__ 
    self.__name__, name)) 
AttributeError: 'gi.repository.Gtk' object has no attribute 'HeaderBar' 

这是怎么回事？我看到这个例子here

Answer 1

GTK +提供GtkHeaderBar since GTK 3.10。您很可能使用旧版本的GTK 3.检查unmodified example program在您的机器上运行。