menulibre wont start after upgrade to 19.04

[Timon]

after upgrading to Ubuntu 19.04 won't start. i tried reinstalling it but that won't help.
when starting in terminal i get the following:

(menulibre:10108): Gtk-WARNING **: 12:28:33.544: gtk_menu_attach_to_widget(): menu already attached to GtkMenuButton

(menulibre:10108): Gtk-WARNING **: 12:28:33.596: gtk_menu_attach_to_widget(): menu already attached to GtkMenuButton
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/menulibre/MenulibreApplication.py", line 2217, in do_activate
    self.win = MenulibreWindow(self, headerbar)
  File "/usr/lib/python3/dist-packages/menulibre/MenulibreApplication.py", line 250, in __init__
    self.configure_application_treeview(builder)
  File "/usr/lib/python3/dist-packages/menulibre/MenulibreApplication.py", line 589, in configure_application_treeview
    self.treeview = MenulibreTreeview.Treeview(self, builder)
  File "/usr/lib/python3/dist-packages/menulibre/MenulibreTreeview.py", line 48, in __init__
    self._configure_treeview(builder)
  File "/usr/lib/python3/dist-packages/menulibre/MenulibreTreeview.py", line 59, in _configure_treeview
    treestore = MenuEditor.get_treestore()
  File "/usr/lib/python3/dist-packages/menulibre/MenuEditor.py", line 123, in get_treestore
    return menu_to_treestore(treestore, None, menu)
  File "/usr/lib/python3/dist-packages/menulibre/MenuEditor.py", line 100, in menu_to_treestore
    tooltip = escapeText(item[2]['comment'])
  File "/usr/lib/python3/dist-packages/menulibre/util.py", line 99, in escapeText
    return GLib.markup_escape_text(text, len(text))
  File "/usr/lib/python3/dist-packages/gi/overrides/GLib.py", line 415, in markup_escape_text
    return GLib.markup_escape_text(text, length)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc3 in position 13: unexpected end of data

Update: Changing the system language from German to English fixed it.

[Timon (the-senate)]

OK, i just changed my system language from German to English and now its starting again

[Martin Dauskardt (md001)]

same problem here (german system language)

[Dan Jared (danjaredg)]

The problem is with GLib.markup_escape_text, because spanish fail too

[Dan Jared (danjaredg)]

run as workaround:
env LANG=C menulibre

[Kirill (kirillnow)]

Simple fix:
sudo sed -i "/GLib.markup_escape_text(text, len(text))/s/len(text)/len(text.encode('utf-8'))/" /usr/lib/python3*/*-packages/menulibre/util.py

GLib.markup_escape_text() expecting length in bytes, len() returns number of code points.