confluent-kafka: init at 0.9.4

Disabled tests for python 3 since the 0.9.4 release has failing tests
when run under python 3.

pkgs/development/python-modules/confluent-kafka/default.nix

@@ -0,0 +1,24 @@
+{ stdenv, buildPythonPackage, fetchPypi, isPy3k, rdkafka, requests, avro3k, avro}:
+
+buildPythonPackage rec {
+  name = "${pname}-${version}";
+  version = "0.9.4";
+  pname = "confluent-kafka";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1v8apw9f8l01ql42jg1sfqv41yxvcbxn1a3ar01y0ni428swq6wk";
+  };
+
+  buildInputs = [ rdkafka requests ] ++ (if isPy3k then [ avro3k ] else [ avro ]) ;
+
+  # Tests fail for python3 under this pypi release
+  doCheck = if isPy3k then false else true;
+
+  meta = with stdenv.lib; {
+    description = "Confluent's Apache Kafka client for Python";
+    homepage = "https://github.com/confluentinc/confluent-kafka-python";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ mlieberman85 ];
+  };
+}

pkgs/top-level/python-packages.nix

@@ -4071,6 +4071,8 @@ in {
     };
   };
 
+  confluent-kafka = callPackage ../development/python-modules/confluent-kafka {};
+
 
   construct = buildPythonPackage rec {
     name = "construct-${version}";