gmpy2: 2.0.6 -> 2.0.8

Also move outside python-packages.nix

pkgs/development/python-modules/gmpy2/default.nix

@@ -0,0 +1,25 @@
+{ stdenv, buildPythonPackage, fetchurl, isPyPy, gmp, mpfr, libmpc } :
+
+let
+  pname = "gmpy2";
+  version = "2.0.8";
+in
+
+buildPythonPackage {
+  inherit pname version;
+
+  disabled = isPyPy;
+
+  src = fetchurl {
+    url = "mirror://pypi/g/gmpy2/${pname}-${version}.zip";
+    sha256 = "0grx6zmi99iaslm07w6c2aqpnmbkgrxcqjrqpfq223xri0r3w8yx";
+  };
+
+  buildInputs = [ gmp mpfr libmpc ];
+
+  meta = with stdenv.lib; {
+    description = "GMP/MPIR, MPFR, and MPC interface to Python 2.6+ and 3.x";
+    homepage = http://code.google.com/p/gmpy/;
+    license = licenses.gpl3Plus;
+  };
+}

pkgs/top-level/python-packages.nix

@@ -2626,28 +2626,7 @@ in {
 
   gmpy = callPackage ../development/python-modules/gmpy { };
 
-  gmpy2 = buildPythonPackage rec {
+  gmpy2 = callPackage ../development/python-modules/gmpy2 { };
-    name = "gmpy2-2.0.6";
-    disabled = isPyPy;
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/g/gmpy2/${name}.zip";
-      sha256 = "5041d0ae24407c24487106099f5bcc4abb1a5f58d90e6712cc95321975eddbd4";
-    };
-
-    buildInputs = [
-      pkgs.gcc
-      pkgs.gmp
-      pkgs.mpfr
-      pkgs.libmpc
-    ];
-
-    meta = {
-      description = "GMP/MPIR, MPFR, and MPC interface to Python 2.6+ and 3.x";
-      homepage = http://code.google.com/p/gmpy/;
-      license = licenses.gpl3Plus;
-    };
-  };
 
   gmusicapi = with pkgs; buildPythonPackage rec {
     name = "gmusicapi-10.1.0";