diff --git a/pkgs/development/python-modules/ruamel_yaml_clib/default.nix b/pkgs/development/python-modules/ruamel_yaml_clib/default.nix
new file mode 100644
index 000000000000..19c208f27169
--- /dev/null
+++ b/pkgs/development/python-modules/ruamel_yaml_clib/default.nix
@@ -0,0 +1,29 @@
+{ stdenv
+, buildPythonPackage
+, fetchFromBitbucket
+, ruamel_base
+, ruamel_ordereddict
+, isPy3k
+}:
+
+buildPythonPackage rec {
+  pname = "ruamel.yaml.clib";
+  version = "0.2.0";
+
+  src = fetchFromBitbucket {
+    owner = "ruamel";
+    repo = "yaml.clib";
+    rev = version;
+    sha256 = "0kq6zi96qlm72lzj90fc2rfk6nm5kqhk6qxdl8wl9s3a42b0v6wl";
+  };
+
+  # outputs match wheel
+  doCheck = false;
+
+  meta = with stdenv.lib; {
+    description = "YAML parser/emitter that supports roundtrip preservation of comments, seq/map flow style, and map key order";
+    homepage = https://bitbucket.org/ruamel/yaml;
+    license = licenses.mit;
+  };
+
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 044a5fda7c10..b054a1a93e3d 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -5259,6 +5259,8 @@ in {
 
   ruamel_yaml = callPackage ../development/python-modules/ruamel_yaml { };
 
+  ruamel_yaml_clib = callPackage ../development/python-modules/ruamel_yaml_clib { };
+
   ruffus = callPackage ../development/python-modules/ruffus { };
 
   runsnakerun = callPackage ../development/python-modules/runsnakerun { };