nl: call the Error function with 4 arguments, string "%s was connected to the '%s' signal with a lazy reference to the '%s' sender,
code: errors . append ( Error ( "%s was connected to the '%s' signal " "with a lazy reference to the '%s' sender, " "which has not been installed." % ( description , name , '.' . join ( reference ) ) , obj = receiver . __module__ , hint = None , id = 'signals.E001' ) )