ruby, python, comparison of redefining class

ruby_python_class_re_define

$ cat a.py
class A(object):
    def foo(self):
        return "foo"

a = A()

print a.foo()

class A(object):
    def foo(self):
        return "bar"

print a.foo()
$ python a.py
foo
foo
$ cat a.rb
class A
    def foo
        return "foo"
    end
end

a = A.new

print a.foo(), "\n"

class A
    def foo
        return "bar"
    end
end

print a.foo(), "\n"
$ ruby a.rb
foo
bar