1.ruby

#In Ruby:

class Foo
  attr_accessor :bar
end

f = Foo.new
f.bar = 'baz'
f.bar # => 'baz'

#In Python:

class Foo(object):
  @property
  def bar(self):
    return self.get_bar_somehow()

  @setter
  def bar(self, val):
    return self.set_bar(val)