diff --git a/build/build.py b/build/build.py
index e0a1268070..458d6807ae 100644
--- a/build/build.py
+++ b/build/build.py
@@ -42,6 +42,7 @@
 parser = argparse.ArgumentParser()
 parser.add_argument('--tbbroot',       default='.', help='Take Intel TBB from here')
 parser.add_argument('--prefix',        default=default_prefix, help='Prefix')
+parser.add_argument('--prebuilt',      default=[],    action='append', help='Directories to find prebuilt files')
 parser.add_argument('--no-rebuild',    default=False, action='store_true', help='do not rebuild')
 parser.add_argument('--install',       default=False, action='store_true', help='install all')
 parser.add_argument('--install-libs',  default=False, action='store_true', help='install libs')
@@ -92,75 +93,79 @@ def custom_cp(src, dst):
 
 ##############################################################
 
+def run_make(arg):
+    if os.system('%s -j %s'% (args.make_tool, arg)) != 0:
+       print("\nBummer. Running serial build in order to recover the log and have a chance to fix the build")
+       assert os.system('%s %s'% (args.make_tool, arg)) == 0
+
 os.chdir(args.tbbroot)
-if is_win and args.msbuild:
-    preview_release_dir = release_dir = jp(args.tbbroot, 'build', 'vs'+args.vs, args.vs_platform, 'Release')
-    if not args.no_rebuild or not os.path.isdir(release_dir):
-        assert os.system('msbuild /m /p:Platform=%s /p:Configuration=Release %s build/vs%s/makefile.sln'% \
-                        (args.vs_platform, args.build_args, args.vs)) == 0
-    preview_debug_dir = debug_dir = jp(args.tbbroot, 'build', 'vs'+args.vs, args.vs_platform, 'Debug')
-    if not args.no_rebuild or not os.path.isdir(debug_dir):
-        assert os.system('msbuild /m /p:Platform=%s /p:Configuration=Debug %s build/vs%s/makefile.sln'% \
-                        (args.vs_platform, args.build_args, args.vs)) == 0
+if args.prebuilt:
+    release_dirs = sum([glob(d) for d in args.prebuilt], [])
+    print("Using pre-built files from ", release_dirs)
 else:
-    release_dir = jp(args.tbbroot, 'build', args.build_prefix+'_release')
-    debug_dir = jp(args.tbbroot, 'build', args.build_prefix+'_debug')
-    if not args.no_rebuild or not (os.path.isdir(release_dir) and os.path.isdir(debug_dir)):
-        assert os.system('%s -j tbb_build_prefix=%s %s'% \
-                        (args.make_tool, args.build_prefix, args.build_args)) == 0
-    preview_release_dir = jp(args.tbbroot, 'build', args.build_prefix+'_preview_release')
-    preview_debug_dir = jp(args.tbbroot, 'build', args.build_prefix+'_preview_debug')
-    if not args.no_rebuild or not (os.path.isdir(preview_release_dir) and os.path.isdir(preview_debug_dir)):
-        assert os.system('%s -j tbb_build_prefix=%s_preview %s tbb_cpf=1 tbb'% \
-                        (args.make_tool, args.build_prefix, args.build_args)) == 0
-
+    if is_win and args.msbuild:
+        preview_release_dir = release_dir = jp(args.tbbroot, 'build', 'vs'+args.vs, args.vs_platform, 'Release')
+        if not args.no_rebuild or not os.path.isdir(release_dir):
+            assert os.system('msbuild /m /p:Platform=%s /p:Configuration=Release %s build/vs%s/makefile.sln'% \
+                            (args.vs_platform, args.build_args, args.vs)) == 0
+        preview_debug_dir = debug_dir = jp(args.tbbroot, 'build', 'vs'+args.vs, args.vs_platform, 'Debug')
+        if not args.no_rebuild or not os.path.isdir(debug_dir):
+            assert os.system('msbuild /m /p:Platform=%s /p:Configuration=Debug %s build/vs%s/makefile.sln'% \
+                            (args.vs_platform, args.build_args, args.vs)) == 0
+    else:
+        release_dir = jp(args.tbbroot, 'build', args.build_prefix+'_release')
+        debug_dir = jp(args.tbbroot, 'build', args.build_prefix+'_debug')
+        if not args.no_rebuild or not (os.path.isdir(release_dir) and os.path.isdir(debug_dir)):
+            run_make('tbb_build_prefix=%s %s'% (args.build_prefix, args.build_args))
+        preview_release_dir = jp(args.tbbroot, 'build', args.build_prefix+'_preview_release')
+        preview_debug_dir = jp(args.tbbroot, 'build', args.build_prefix+'_preview_debug')
+        if not args.no_rebuild or not (os.path.isdir(preview_release_dir) and os.path.isdir(preview_debug_dir)):
+            run_make('tbb_build_prefix=%s_preview %s tbb_cpf=1 tbb'% (args.build_prefix, args.build_args))
+    release_dirs = [release_dir, debug_dir, preview_release_dir, preview_debug_dir]
 
 filemap = OrderedDict()
-def append_files(files, dst):
+def append_files(names, dst, paths=release_dirs):
     global filemap
+    files = sum([glob(jp(d, f)) for d in paths for f in names], [])
     filemap.update(dict(zip(files, [dst]*len(files))))
 
+
 if args.install_libs:
-    files = [jp(release_dir, libpref+f+libext) for f in tbb_names]
-    append_files(files, dll_dir)
+    append_files([libpref+f+libext for f in tbb_names], dll_dir)
 
 if args.install_devel:
-    dll_files = [jp(debug_dir, libpref+f+'_debug'+libext) for f in tbb_names] # adding debug libraries
+    dll_files = [libpref+f+'_debug'+libext for f in tbb_names]          # adding debug libraries
     if not is_win or not args.msbuild:
-        dll_files += [jp(preview_release_dir, libpref+"tbb_preview"+libext),
-                      jp(preview_debug_dir, libpref+"tbb_preview_debug"+libext)]
+        dll_files += [libpref+"tbb_preview"+libext, libpref+"tbb_preview_debug"+libext]
     if is_win:
-        dll_files += sum( [glob(jp(d, 'tbb*.pdb')) for d in             # copying debug info
-                          (release_dir, debug_dir, preview_release_dir, preview_debug_dir)], [])
+        dll_files += ['tbb*.pdb']                                       # copying debug info
     if is_lin:
-        dll_files += sum( [glob(jp(d, 'libtbb*.so')) for d in           # copying linker scripts
-                          (release_dir, debug_dir, preview_release_dir, preview_debug_dir)], [])
+        dll_files += ['libtbb*.so']                                     # copying linker scripts
         # symlinks .so -> .so.2 should not be created instead
         # since linking with -ltbb when using links can result in
         # incorrect dependence upon unversioned .so files
     append_files(dll_files, dll_dir)
     if is_win:
-        lib_files = sum([glob(jp(d,e)) for d in (release_dir, debug_dir) for e in ('*.lib', '*.def')], [])
-        append_files(lib_files, lib_dir) # copying linker libs and defs
+        append_files(['*.lib', '*.def'], lib_dir)                       # copying linker libs and defs
     for rootdir, dirnames, filenames in os.walk(jp(args.tbbroot,'include')):
-        files = [jp(rootdir, f) for f in filenames if not '.html' in f]
-        append_files(files, jp(inc_dir, rootdir.split('include')[1][1:]))
+        files = [f for f in filenames if not '.html' in f]
+        append_files(files, jp(inc_dir, rootdir.split('include')[1][1:]), paths=(rootdir,))
 
-if args.install_python:
-    assert os.system('%s -j tbb_build_prefix=%s %s python'% \
-                    (args.make_tool, args.build_prefix, args.build_args)) == 0
+if args.install_python: # RML part
+    irml_dir = jp(args.tbbroot, 'build', args.build_prefix+'_release')
+    run_make('-C src tbb_build_prefix=%s %s python_rml'% (args.build_prefix, args.build_args))
     if is_lin:
-        append_files([jp(release_dir, 'libirml.so.1')], dll_dir)
+        append_files(['libirml.so.1'], dll_dir, paths=[irml_dir])
 
 if args.install_docs:
-    files = [jp(args.tbbroot, *f) for f in (
-            ('CHANGES',),
-            ('LICENSE',),
-            ('README',),
-            ('README.md',),
-            ('doc','Release_Notes.txt'),
-            )]
-    append_files(files, doc_dir)
+    files = [
+            'CHANGES',
+            'LICENSE',
+            'README',
+            'README.md',
+            'Release_Notes.txt',
+            ]
+    append_files(files, doc_dir, paths=release_dirs+[jp(args.tbbroot, d) for d in ('.', 'doc')])
 
 for f in filemap.keys():
     assert os.path.exists(f)
@@ -174,4 +179,11 @@ def append_files(files, dst):
     print("+ %s to $prefix%s"%(f,dest.replace(args.prefix, '')))
     install_cp(f, dest)
 
+if args.install_python: # Python part
+    paths = [os.path.abspath(d) for d in (args.prefix, irml_dir, lib_dir, inc_dir)]
+    os.environ["TBBROOT"] = paths[0]
+    # all the paths must be relative to python/ directory or be absolute
+    assert os.system('python python/setup.py build -b%s build_ext -L%s:%s -I%s install -f'% \
+        (paths[1], paths[2], paths[1], paths[3])) == 0 # add install location? windows needs pythnon/Library location separation
+
 print("done")
diff --git a/src/Makefile b/src/Makefile
index 69fe26b952..17cedc64cb 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -94,7 +94,7 @@ else
 	@$(MAKE) -C "$(work_dir)_$(cfg)"  -r -f $(tbb_root)/build/Makefile.test $@
 endif
 
-python_%:
+python_%: mkdir_release
 	$(MAKE) -C "$(work_dir)_release" -rf $(tbb_root)/python/Makefile $(subst python_,,$@)
 
 .PHONY: test_release test_debug test_release_no_depends test_debug_no_depends