- adding experimental python31 build

- cleanup python libraries:
 * moving all python libraries into a attr set into a directory
   so that expressions can be used for both: python 2.5 and 2.6 easily
 * disabling packages which don't build

svn path=/nixpkgs/trunk/; revision=21142

pkgs/development/python-modules/pycrypto/default.nix

@@ -1,15 +0,0 @@
-{stdenv, fetchurl, python, gmp}:
-
-stdenv.mkDerivation {
-  name = "pycrypto-2.0.1";
-  src = fetchurl {
-    url = http://www.amk.ca/files/python/crypto/pycrypto-2.0.1.tar.gz;
-    md5 = "4d5674f3898a573691ffb335e8d749cd";
-  };
-  buildInputs = [python gmp];
-  buildPhase = "true";
-  installPhase = "
-    python ./setup.py build_ext --library-dirs=${gmp}/lib
-    python ./setup.py install --prefix=$out
-  ";
-}