Joao Pedrosa wrote: > Hi, > > dewd@heaven:~ $ ruby -v > ruby 1.9.0 (2005-05-01) [i686-linux] > dewd@heaven:~ $ irb > irb(main):001:0> def opa s > irb(main):002:1> 'z' > irb(main):003:1> end > => nil > irb(main):004:0> opa 'kct' > => "z" > irb(main):005:0> opa = opa('kct') > NoMethodError: undefined method `call' for nil:NilClass > from (irb):5 > irb(main):006:0> exit > dewd@heaven:~ $ > > I tested it on Windows and on Linux with Ruby CVS-HEAD: > dewd@heaven:~ $ ruby -v > ruby 1.9.0 (2005-05-01) [i686-linux] > > Is it on purpose? Because it breaks some code in at least a lib that I > know of (in rakewx.rb from wxRuby). Dunno... Additional note: 1.8.2 doesn't show this behavior. But: never trust IRB when it comes to local variables. Did you also try that in a script or with ruby -e '...'? Kind regards robert