[maheshs]

Python vs Ruby - Both are great. I tried ruby first for a week or so and then move to python; I love python simplicity. According to my learning experience you can learn python faster then any other language (I am a ASP.NET/C# developer in my day job.)

Django vs Rails - I don't have any experience with Rails because you must know ruby first. Django is a natural choice for me because of python. Till now it seems good to me (around a month experience). It is seem not so cool in comparison to Rails but its good (I also know little bit of ASP.NET MVC).

Note: I am not an expert in both language/framework, so you can ignore my suggestions.