File "/usr/lib/python3/dist-packages/electrum/gui/qt/main_window.py", line 706, in <lambda>
    contacts_menu.addAction(_("Import"), lambda: self.import_contacts())
  File "/usr/lib/python3/dist-packages/electrum/gui/qt/main_window.py", line 2880, in import_contacts
    import_meta_gui(self, _('contacts'), self.contacts.import_file, self.contact_list.update)
  File "/usr/lib/python3/dist-packages/electrum/gui/qt/util.py", line 934, in import_meta_gui
    importer(filename)
  File "/usr/lib/python3/dist-packages/electrum/contacts.py", line 56, in import_file
    data = self._validate(data)
  File "/usr/lib/python3/dist-packages/electrum/contacts.py", line 131, in _validate
    _type, _ = v