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Message: [QUOTE="Trans, post: 4481783"] Avoid globals by using container classes/modules. In your cace you might use the base class itself. class Base class << self attr_accessor :user, :pass attr_reader :client, :sessionid def login(user=nil,pass=nil) @user = user if user @pass = pass if pass @client = XMLRPC::Client.new(...) @sessionid = @client.call("xmlrpc.method", @user, @pass) return @sessionid end end def initialize if not self.class.sessionid then self.class.login end end end class Object1 < Base def initialize() super end end Then use Base.login('name','password') or Base.user = 'name' Base.pass = 'password' Base.login And go from there. Hope I understood the intent of your code correctly. T. [/QUOTE]