diff --git a/pkgs/development/python-modules/affinity/default.nix b/pkgs/development/python-modules/affinity/default.nix
new file mode 100644
index 000000000000..f2cb2ef6445e
--- /dev/null
+++ b/pkgs/development/python-modules/affinity/default.nix
@@ -0,0 +1,16 @@
+{ lib, buildPythonPackage, fetchPypi }:
+
+buildPythonPackage rec {
+  name = "${pname}-${version}";
+  pname = "affinity";
+  version = "0.1.0";
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1i6j7kszvnzh5vh9k48cqwx2kzf73a6abgv9s6bf0j2zmfjl2wb6";
+  };
+  meta = {
+    description = "control processor affinity on windows and linux";
+    homepage    = http://cheeseshop.python.org/pypi/affinity;
+    license     = with lib.licenses; [ psfl ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index a10f4e9830ab..6a0573a7f7a0 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -105,6 +105,8 @@ in {
 
   aenum = callPackage ../development/python-modules/aenum { };
 
+  affinity = callPackage ../development/python-modules/affinity { };
+
   agate = callPackage ../development/python-modules/agate { };
 
   agate-dbf = callPackage ../development/python-modules/agate-dbf { };