From: Pit Capitain Date: 2009-01-20T06:05:48+09:00 Subject: [ruby-core:21443] Re: Proposal: Module#copy_method 2009/1/18 Yehuda Katz : > Eero is correct that copying methods the way Pit Captain suggested will not > work unless me <= self. The define_method replacement for copy_method was not meant as a general solution, just for your use case in Module#__move_to_module. Ruby 1.8 does allow it in this case, but 1.9 doesn't. Regards, Pit