Using g_application_add_main_option_entries() with PyGObject

gistfile1.py

from gi.repository import GLib, Gtk

def make_option(long_name, short_name=None, flags=0, arg=GLib.OptionArg.NONE,
                arg_data=None, description=None, arg_description=None):
    # surely something like this should exist inside PyGObject itself?!
    option = GLib.OptionEntry()
    option.long_name = long_name.lstrip('-')
    option.short_name = 0 if not short_name else short_name.lstrip('-')
    option.flags = flags
    option.arg = arg
    option.arg_data = arg_data
    option.description = description
    option.arg_description = arg_description
    return option

# Usage example:

class MyApp(Gtk.Application):
    def __init__(self, *args, **kw):
        super(MyApp, self).__init__(*args, **kw)
        self.add_main_option_entries([
            make_option("--version", description="Show version number and exit"),
        ])