__init__.py 文件源码

def setup_signals(self, signals, handler):
        """
        This is a workaround to signal.signal(signal, handler)
        which does not work with a GLib.MainLoop() for some reason.
        Thanks to: http://stackoverflow.com/a/26457317/5433146
        args:
            signals (list of signal.SIG... signals): the signals to connect to
            handler (function): function to be executed on these signals
        """
        def install_glib_handler(sig): # add a unix signal handler
            GLib.unix_signal_add( GLib.PRIORITY_HIGH, 
                sig, # for the given signal
                handler, # on this signal, run this function
                sig # with this argument
                )

        for sig in signals: # loop over all signals
            GLib.idle_add( # 'execute'
                install_glib_handler, sig, # add a handler for this signal
                priority = GLib.PRIORITY_HIGH  )

    # get an object from the builder