Pix pylint with unused imports and method access modifier

src/briar/gtk/containers/add_contact.py

@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 # License-Filename: LICENSE.md
 
-from gi.repository import GLib, Gtk
+from gi.repository import GLib
 
 from briar.api.models.contacts import Contacts
 from briar.gtk.container import Container
@@ -40,4 +40,4 @@ class AddContactContainer(Container):
         alias = self.builder.get_object("alias_entry").get_text()
         contacts = Contacts(self._api)
         contacts.add_pending(their_link, alias)
-        GLib.idle_add(APP().window._back_to_main, None)
+        GLib.idle_add(APP().window.back_to_main, None)

src/briar/gtk/window.py

@@ -86,7 +86,7 @@ class Window(Gtk.ApplicationWindow):
         self._container = AddContactContainer()
         self._container.show()
         self._grid.add(self._container)
-        self._toolbar.show_back_button(True, self._back_to_main)
+        self._toolbar.show_back_button(True, self.back_to_main)
         self._toolbar.show_add_contact_button(False)
 
     def open_private_chat(self, contact_id):
@@ -98,11 +98,11 @@ class Window(Gtk.ApplicationWindow):
         self._container = ChatContainer(contact_id)
         self._container.show()
         self._grid.add(self._container)
-        self._toolbar.show_back_button(True, self._back_to_main)
+        self._toolbar.show_back_button(True, self.back_to_main)
         self._toolbar.show_add_contact_button(False)
 
     # pylint: disable=unused-argument
-    def _back_to_main(self, widget):
+    def back_to_main(self, widget):
         self._grid.destroy()
         self._setup_grid()
         self._toolbar.show_back_button(False)