From: Idan Sofer <idan@...>
Date: 2003-03-20T23:35:35+09:00
Subject: Re: Strong advantages over Python

Greg McIntyre wrote:

>would be one focus of the lecture. But I'm interested in specific
>examples where the equivalent Python code is significantly more
>difficult.
>  
>
Perhaps situation when you wish to do method run-time optimization.

suppose:

class Foo
  def parse()
[...]
  def self.data()
    @data
  end
  end

  def data()
     File.open ("data.txt") do |file|
       self.parse(file.read)
     end
  end
end

data.txt is read only once per instance, but no run-time check(if @data) 
is needed, Foo#parse just rewrites Foo#data at runtime as singleton method.

There no such kind of technique in python AFAIK.