title: UltiSnips requires py >= 2.6 or any py3
body: <p>I'm trying to install UltiSnips in different way but the same message appears each time when I launch vim.
  Python 2.7 is installed but it seems that vim has been installed before the 2.7 version.</p>
  
  <p>I tryed to reinstall vim using this <a href="http://vim.wikia.com/wiki/Building_Vim" rel="noreferrer">link</a>: </p>
  
  <pre><code>$ sudo apt-get install mercurial libssl-dev
  $ sudo apt-get build-dep vim
  $ hg clone http://hg.debian.org/hg/pkg-vim/vim
  $ cd vim
  $ hg checkout unstable
  $ debian/rules update-orig
  $ dpkg-buildpackage -i -I
  $ cd ..
  </code></pre>
  
  <p>But the same problem remains.
  Thanks</p>