2016-07-03 24 views
2

如何正确创建Gtk.FileChooseDialog?Python GTK3:如何创建一个Gtk.FileChooseDialog?

This popular tutorial说,使用类似下面的代码:

import gi 
gi.require_version('Gtk', '3.0') 
from gi.repository import Gtk 

dialog = Gtk.FileChooserDialog("Please choose a folder", None, 
    Gtk.FileChooserAction.SELECT_FOLDER, 
    (Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL, 
    "Select", Gtk.ResponseType.OK)) 

但是,如果你运行这个与python -W error(赶弃用警告),它说:

File "test3.py", line 8, in <module> 
    "Select", Gtk.ResponseType.OK)) 
    File "/usr/lib/python2.7/dist-packages/gi/overrides/__init__.py", line 287, in new_init 
    category, stacklevel=stacklevel) 
gi.overrides.Gtk.PyGTKDeprecationWarning: Using positional arguments with the GObject constructor has been deprecated. Please specify keyword(s) for "title, parent, action, buttons" or use a class specific constructor. See: https://wiki.gnome.org/PyGObject/InitializerDeprecations 

使用Gtk.FileChooserDialog.newTypeError: Dialog constructor cannot be used to create instances of a subclass FileChooserDialog

The API对构造函数没有提及。奇怪的。

ps:此问题的答案应与python -W error一起使用。它不应该依赖于已弃用的API。这是我问的所有问题。

回答

3

只需按照说明操作并使用关键字参数即可。我也改变了按钮使用.add_buttons(),因为那也抛出了一个弃用警告:

import gi 
gi.require_version('Gtk', '3.0') 
from gi.repository import Gtk 

dialog = Gtk.FileChooserDialog(
    title="Please choose a folder", 
    action=Gtk.FileChooserAction.SELECT_FOLDER, 
) 

dialog.add_buttons(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL, 
        "Select", Gtk.ResponseType.OK)