launching vi/vim from console

[adm]

I am newbie to python.
Is there a way to launch vi/vim or any other editor from python
console? I find editing in console very limiting. I can either have a
console which launches vi and remembers it's content and then executes
or invoke python interpreter from vim.

Since I could not find anything I wrote this: http://python.pastebin.com/MFTHxuLe
Please suggest if there is any better alternative for this.
I tried googling for this but could not find anything interesting.

Thanks,
Adm