diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3194ac097..5019a9e62 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,8 +4,37 @@ project(numbuf)
 
 list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake/Modules)
 
-find_package(PythonInterp REQUIRED)
-find_package(PythonLibs REQUIRED)
+if(NOT APPLE)
+  find_package(PythonInterp REQUIRED)
+  find_package(PythonLibs REQUIRED)
+  set(CUSTOM_PYTHON_EXECUTABLE ${PYTHON_EXECUTABLE})
+else()
+  find_program(CUSTOM_PYTHON_EXECUTABLE python)
+  message("-- Found Python program: ${CUSTOM_PYTHON_EXECUTABLE}")
+  execute_process(COMMAND ${CUSTOM_PYTHON_EXECUTABLE} -c
+                    "import sys; print 'python' + sys.version[0:3]"
+                    OUTPUT_VARIABLE PYTHON_LIBRARY_NAME OUTPUT_STRIP_TRAILING_WHITESPACE)
+    execute_process(COMMAND ${CUSTOM_PYTHON_EXECUTABLE} -c
+                    "import sys; print sys.exec_prefix"
+                    OUTPUT_VARIABLE PYTHON_PREFIX OUTPUT_STRIP_TRAILING_WHITESPACE)
+    FIND_LIBRARY(PYTHON_LIBRARIES
+                 NAMES ${PYTHON_LIBRARY_NAME}
+                 HINTS "${PYTHON_PREFIX}"
+                 PATH_SUFFIXES "lib" "libs"
+                 NO_DEFAULT_PATH)
+    execute_process(COMMAND ${CUSTOM_PYTHON_EXECUTABLE} -c
+                    "from distutils.sysconfig import *; print get_python_inc()"
+                    OUTPUT_VARIABLE PYTHON_INCLUDE_DIRS OUTPUT_STRIP_TRAILING_WHITESPACE)
+    if(PYTHON_LIBRARIES AND PYTHON_INCLUDE_DIRS)
+        SET(PYTHONLIBS_FOUND TRUE)
+        message("-- Found PythonLibs: " ${PYTHON_LIBRARIES})
+        message("-- -- Used custom search path")
+    else()
+        find_package(PythonLibs REQUIRED)
+        message("-- -- Used find_package(PythonLibs)")
+    endif()
+endif()
+
 find_package(NumPy REQUIRED)
 
 if(APPLE)
@@ -41,4 +70,10 @@ add_library(numbuf SHARED
   python/src/pynumbuf/adapters/numpy.cc
   python/src/pynumbuf/adapters/python.cc)
 
+if(APPLE)
+  add_custom_command(TARGET numbuf
+      POST_BUILD COMMAND
+      ${CMAKE_INSTALL_NAME_TOOL} -change ${PYTHON_SHARED_LIBRARY} ${PYTHON_LIBRARIES} libnumbuf.so)
+endif(APPLE)
+
 target_link_libraries(numbuf ${ARROW_STATIC_LIB} ${PYTHON_LIBRARIES})
diff --git a/cmake/Modules/FindNumPy.cmake b/cmake/Modules/FindNumPy.cmake
index 6e1f3c415..0b9fb3e5c 100644
--- a/cmake/Modules/FindNumPy.cmake
+++ b/cmake/Modules/FindNumPy.cmake
@@ -14,8 +14,8 @@
 unset(NUMPY_VERSION)
 unset(NUMPY_INCLUDE_DIR)
 
-if(PYTHONINTERP_FOUND)
-  execute_process(COMMAND "${PYTHON_EXECUTABLE}" "-c"
+if(NOT "${CUSTOM_PYTHON_EXECUTABLE}" STREQUAL "CUSTOM_PYTHON_EXECUTABLE-NOTFOUND")
+  execute_process(COMMAND "${CUSTOM_PYTHON_EXECUTABLE}" "-c"
     "import numpy as n; print(n.__version__); print(n.get_include());"
     RESULT_VARIABLE __result
     OUTPUT_VARIABLE __output
@@ -42,7 +42,7 @@ if(PYTHONINTERP_FOUND)
     endif()
   endif()
 else()
-  message(STATUS "To find NumPy Python interpretator is required to be found.")
+  message(STATUS "To find NumPy Python executable is required to be found.")
 endif()
 
 include(FindPackageHandleStandardArgs)
diff --git a/python/src/pynumbuf/numbuf.cc b/python/src/pynumbuf/numbuf.cc
index d13d92371..d95feaf84 100644
--- a/python/src/pynumbuf/numbuf.cc
+++ b/python/src/pynumbuf/numbuf.cc
@@ -16,6 +16,12 @@
 using namespace arrow;
 using namespace numbuf;
 
+std::shared_ptr<RowBatch> make_row_batch(std::shared_ptr<Array> data) {
+  auto field = std::make_shared<Field>("list", data->type());
+  std::shared_ptr<Schema> schema(new Schema({field}));
+  return std::shared_ptr<RowBatch>(new RowBatch(schema, data->length(), {data}));
+}
+
 extern "C" {
 
 static PyObject *NumbufError;
@@ -34,12 +40,6 @@ static void ArrowCapsule_Destructor(PyObject* capsule) {
   delete reinterpret_cast<std::shared_ptr<RowBatch>*>(PyCapsule_GetPointer(capsule, "arrow"));
 }
 
-std::shared_ptr<RowBatch> make_row_batch(std::shared_ptr<Array> data) {
-  auto field = std::make_shared<Field>("list", data->type());
-  std::shared_ptr<Schema> schema(new Schema({field}));
-  return std::shared_ptr<RowBatch>(new RowBatch(schema, data->length(), {data}));
-}
-
 /*! Serializes a Python list into an Arrow array.
 
     \param args
@@ -52,7 +52,7 @@ std::shared_ptr<RowBatch> make_row_batch(std::shared_ptr<Array> data) {
 
       A Python "arrow" capsule containing the RowBatch
 */
-PyObject* serialize_list(PyObject* self, PyObject* args) {
+static PyObject* serialize_list(PyObject* self, PyObject* args) {
   PyObject* value;
   if (!PyArg_ParseTuple(args, "O", &value)) {
     return NULL;
@@ -94,7 +94,7 @@ PyObject* serialize_list(PyObject* self, PyObject* args) {
     \return
       The arrow metadata offset for the arrow metadata
 */
-PyObject* write_to_buffer(PyObject* self, PyObject* args) {
+static PyObject* write_to_buffer(PyObject* self, PyObject* args) {
   std::shared_ptr<RowBatch>* batch;
   PyObject* memoryview;
   if (!PyArg_ParseTuple(args, "O&O", &PyObjectToArrow, &batch, &memoryview)) {
@@ -119,7 +119,7 @@ PyObject* write_to_buffer(PyObject* self, PyObject* args) {
     \return
       A Python "arrow" capsule containing the arrow RowBatch
 */
-PyObject* read_from_buffer(PyObject* self, PyObject* args) {
+static PyObject* read_from_buffer(PyObject* self, PyObject* args) {
   PyObject* memoryview;
   PyObject* metadata;
   int64_t metadata_offset;
@@ -149,7 +149,7 @@ PyObject* read_from_buffer(PyObject* self, PyObject* args) {
 
 /*!
 */
-PyObject* deserialize_list(PyObject* self, PyObject* args) {
+static PyObject* deserialize_list(PyObject* self, PyObject* args) {
   std::shared_ptr<RowBatch>* data;
   if (!PyArg_ParseTuple(args, "O&", &PyObjectToArrow, &data)) {
     return NULL;
diff --git a/python/test/runtest.py b/python/test/runtest.py
index 9cfa62c92..5c713cc14 100644
--- a/python/test/runtest.py
+++ b/python/test/runtest.py
@@ -5,7 +5,7 @@ from numpy.testing import assert_equal
 
 TEST_OBJECTS = [[1, "hello", 3.0], 42, 43L, "hello world", 42.0, 1L << 62,
                 (1.0, "hi"), None, (None, None), ("hello", None),
-                True, False, (True, False),
+                True, False, (True, False), "hello",
                 {True: "hello", False: "world"},
                 {"hello" : "world", 1: 42, 1.0: 45}, {},
                 np.int8(3), np.int32(4), np.int64(5),