diff --git a/modules/python/CMakeLists.txt b/modules/python/CMakeLists.txt
index b537123dc..91246563e 100644
--- a/modules/python/CMakeLists.txt
+++ b/modules/python/CMakeLists.txt
@@ -5,7 +5,7 @@ project(opencv_python)
 
 include_directories(${PYTHON_INCLUDE_PATH})
 include_directories(
-    ${CMAKE_CURRENT_SOURCE_DIR}
+    "${CMAKE_CURRENT_SOURCE_DIR}/src"
     "${CMAKE_SOURCE_DIR}/modules/core/include"
     "${CMAKE_SOURCE_DIR}/modules/imgproc/include"
     "${CMAKE_SOURCE_DIR}/modules/video/include"
@@ -30,7 +30,7 @@ set(opencv_hdrs "${CMAKE_SOURCE_DIR}/modules/core/include/opencv2/core/core.hpp"
     "${CMAKE_SOURCE_DIR}/modules/features2d/include/opencv2/features2d/features2d.hpp"
     "${CMAKE_SOURCE_DIR}/modules/calib3d/include/opencv2/calib3d/calib3d.hpp"
     "${CMAKE_SOURCE_DIR}/modules/objdetect/include/opencv2/objdetect/objdetect.hpp"
-    "${CMAKE_SOURCE_DIR}/modules/python/opencv_extra_api.hpp")
+    "${CMAKE_SOURCE_DIR}/modules/python/src/opencv_extra_api.hpp")
 
 set(generated_hdrs
         "${CMAKE_CURRENT_BINARY_DIR}/pyopencv_generated_funcs.h"
@@ -43,27 +43,27 @@ if(MSVC)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W3")
 endif()
 
-file(GLOB lib_srcs "*.cpp")
-file(GLOB lib_hdrs "*.h")
+file(GLOB lib_srcs "src/*.cpp")
+file(GLOB lib_hdrs "src/*.h")
 
 add_custom_command(
    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/generated0.i
-   COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/gen.py ${CMAKE_CURRENT_SOURCE_DIR}
-   DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/api
-   DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/defs
-   DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/gen.py
+   COMMAND ${PYTHON_EXECUTABLE} "${CMAKE_CURRENT_SOURCE_DIR}/src/gen.py" "${CMAKE_CURRENT_SOURCE_DIR}/src"
+   DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/src/api
+   DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/src/defs
+   DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/src/gen.py
    )
 
 add_custom_command(
   OUTPUT ${generated_hdrs}
-  COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/gen2.py ${CMAKE_CURRENT_BINARY_DIR} ${opencv_hdrs}
-  DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/gen2.py
-  DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/hdr_parser.py
+  COMMAND ${PYTHON_EXECUTABLE} "${CMAKE_CURRENT_SOURCE_DIR}/src/gen2.py" ${CMAKE_CURRENT_BINARY_DIR} ${opencv_hdrs}
+  DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/src/gen2.py
+  DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/src/hdr_parser.py
   DEPENDS ${opencv_hdrs}
   )
 
 set(the_target "opencv_python")
-add_library(${the_target} ${lib_srcs} ${lib_hdrs} ${lib_int_hdrs} ${CMAKE_CURRENT_BINARY_DIR}/generated0.i opencv2x.h opencv_extra_api.hpp ${generated_hdrs})
+add_library(${the_target} ${lib_srcs} ${lib_hdrs} ${lib_int_hdrs} ${CMAKE_CURRENT_BINARY_DIR}/generated0.i src/opencv2x.h src/opencv_extra_api.hpp ${generated_hdrs})
 target_link_libraries(${the_target} ${PYTHON_LIBRARIES} opencv_core opencv_imgproc opencv_video opencv_ml opencv_features2d opencv_highgui opencv_calib3d opencv_objdetect opencv_legacy opencv_contrib)
     
 set_target_properties(${the_target} PROPERTIES PREFIX "")
diff --git a/modules/python/hdr_parser.pyc b/modules/python/hdr_parser.pyc
new file mode 100755
index 000000000..b3e9a5d65
Binary files /dev/null and b/modules/python/hdr_parser.pyc differ
diff --git a/modules/python/api b/modules/python/src/api
similarity index 100%
rename from modules/python/api
rename to modules/python/src/api
diff --git a/modules/python/cv.cpp b/modules/python/src/cv.cpp
similarity index 99%
rename from modules/python/cv.cpp
rename to modules/python/src/cv.cpp
index ce56ab416..0280fcd9f 100644
--- a/modules/python/cv.cpp
+++ b/modules/python/src/cv.cpp
@@ -3946,7 +3946,7 @@ static double cppKMeans(const CvArr* _samples, int cluster_count, CvArr* _labels
         (labels.cols == 1 || labels.rows == 1) &&
         labels.cols + labels.rows - 1 == data.rows );
     return cv::kmeans(data, cluster_count, labels, termcrit, attempts,
-                                    flags, _centers ? &centers : 0 );
+                        flags, _centers ? cv::OutputArray(centers) : cv::OutputArray() );
 }
 
 #define cvKMeans2(samples, nclusters, labels, termcrit, attempts, flags, centers) \
@@ -4038,7 +4038,7 @@ void initcv()
   m = Py_InitModule(MODULESTR"", methods);
   d = PyModule_GetDict(m);
 
-  PyDict_SetItemString(d, "__version__", PyString_FromString("$Rev$"));
+  PyDict_SetItemString(d, "__version__", PyString_FromString("$Rev: 4557 $"));
 
   opencv_error = PyErr_NewException((char*)MODULESTR".error", NULL, NULL);
   PyDict_SetItemString(d, "error", opencv_error);
diff --git a/modules/python/defs b/modules/python/src/defs
similarity index 100%
rename from modules/python/defs
rename to modules/python/src/defs
diff --git a/modules/python/gen.py b/modules/python/src/gen.py
similarity index 100%
rename from modules/python/gen.py
rename to modules/python/src/gen.py
diff --git a/modules/python/gen2.py b/modules/python/src/gen2.py
similarity index 100%
rename from modules/python/gen2.py
rename to modules/python/src/gen2.py
diff --git a/modules/python/hdr_parser.py b/modules/python/src/hdr_parser.py
similarity index 94%
rename from modules/python/hdr_parser.py
rename to modules/python/src/hdr_parser.py
index 043f3a83c..4924d34a1 100755
--- a/modules/python/hdr_parser.py
+++ b/modules/python/src/hdr_parser.py
@@ -2,15 +2,15 @@ import os, sys, re
 
 # the list only for debugging. The real list, used in the real OpenCV build, is specified in CMakeLists.txt
 opencv_hdr_list = [
-"../core/include/opencv2/core/core.hpp",
-"../ml/include/opencv2/ml/ml.hpp",
-"../imgproc/include/opencv2/imgproc/imgproc.hpp",
-"../calib3d/include/opencv2/calib3d/calib3d.hpp",
-"../features2d/include/opencv2/features2d/features2d.hpp",
-"../video/include/opencv2/video/tracking.hpp",
-"../video/include/opencv2/video/background_segm.hpp",
-"../objdetect/include/opencv2/objdetect/objdetect.hpp",
-"../highgui/include/opencv2/highgui/highgui.hpp",
+"../../core/include/opencv2/core/core.hpp",
+"../../ml/include/opencv2/ml/ml.hpp",
+"../../imgproc/include/opencv2/imgproc/imgproc.hpp",
+"../../calib3d/include/opencv2/calib3d/calib3d.hpp",
+"../../features2d/include/opencv2/features2d/features2d.hpp",
+"../../video/include/opencv2/video/tracking.hpp",
+"../../video/include/opencv2/video/background_segm.hpp",
+"../../objdetect/include/opencv2/objdetect/objdetect.hpp",
+"../../highgui/include/opencv2/highgui/highgui.hpp",
 "opencv_extra_api.hpp",
 ]
 
@@ -192,7 +192,7 @@ class CppHeaderParser(object):
             arg_type += "*"
         
         arg_type = self.batch_replace(arg_type, [("std::", ""), ("cv::", "")])
-            
+    
         return arg_type, arg_name, modlist, argno
         
     def parse_enum(self, decl_str):
@@ -375,6 +375,22 @@ class CppHeaderParser(object):
                     if eqpos >= 0:
                         a = a[:eqpos].strip()
                     arg_type, arg_name, modlist, argno = self.parse_arg(a, argno)
+                    if arg_type == "InputArray" or arg_type == "InputOutputArray":
+                        arg_type = "Mat"
+                    elif arg_type == "OutputArray":
+                        arg_type = "Mat"
+                        modlist.append("/O")
+                    elif arg_type == "InputArrayOfArrays" or arg_type == "InputOutputArrayOfArrays":
+                        arg_type = "vector_Mat"
+                    elif arg_type == "OutputArrayOfArrays":
+                        arg_type = "vector_Mat"
+                        modlist.append("/O")
+                    defval = self.batch_replace(defval, [("InputArrayOfArrays", "vector<Mat>"),
+                                                         ("InputOutputArrayOfArrays", "vector<Mat>"),
+                                                         ("OutputArrayOfArrays", "vector<Mat>"),
+                                                         ("InputArray", "Mat"),
+                                                         ("InputOutputArray", "Mat"),
+                                                         ("OutputArray", "Mat")]).strip()  
                     args.append([arg_type, arg_name, defval, modlist])
                 npos = arg_start-1
         
diff --git a/modules/python/src/hdr_parser.pyc b/modules/python/src/hdr_parser.pyc
new file mode 100755
index 000000000..cc852e413
Binary files /dev/null and b/modules/python/src/hdr_parser.pyc differ
diff --git a/modules/python/opencv2x.h b/modules/python/src/opencv2x.h
similarity index 100%
rename from modules/python/opencv2x.h
rename to modules/python/src/opencv2x.h
diff --git a/modules/python/opencv_extra_api.hpp b/modules/python/src/opencv_extra_api.hpp
similarity index 100%
rename from modules/python/opencv_extra_api.hpp
rename to modules/python/src/opencv_extra_api.hpp