How to transpose the contents of lines and columns in a file in Vim?

Question

I know I can use Awk, but I am on a Windows box, and I am making a function for others that may not have Awk. I also know I can write a C program, but I would love not to have s

Answer 1

Charles Duffy's code could be shortened/improved using izip_longest instead of izip:

function! Rotate()
    :py import vim, itertools
    :py vim.current.buffer[:] = [''.join(c) for c in itertools.izip_longest(*vim.current.buffer, fillvalue=" ")]
endfunction