universal init

modules/custom_operations/user_ie_extensions/src/tokenizer/python/ov_tokenizer/__init__.py

@@ -2,6 +2,7 @@
 # Copyright (C) 2018-2023 Intel Corporation
 # SPDX-License-Identifier: Apache-2.0
 import os
+import sys
 import openvino
 from openvino.runtime.utils.node_factory import NodeFactory
 
@@ -10,13 +11,24 @@
 from .str_pack import pack_strings, unpack_strings
 from .utils import add_greedy_decoding, connect_models
 
-_extension_path = os.path.join(os.path.dirname(__file__), "libs", "libuser_ov_extensions.so")
+_ext_libs_path = os.path.join(os.path.dirname(__file__), "libs")
+_ext_path = os.path.join(_ext_libs_path, "libuser_ov_extensions.so")
+
+if sys.platform == "win32":
+    _ext_path = os.path.join(_ext_libs_path, "libuser_ov_extensions.dll")
+    if os.path.isdir(_ext_libs_path):
+        # On Windows, with Python >= 3.8, DLLs are no longer imported from the PATH.
+        os.add_dll_directory(os.path.abspath(_ext_path))
+    else:
+        sys.exit(f'Error: extention libriary path {_ext_libs_path} not found')
+elif sys.platform == "darwin":
+    _ext_path = os.path.join(_ext_libs_path, "libuser_ov_extensions.dylib")
 
 old_core_init = openvino.runtime.Core.__init__
 def new_core_init(self, *k, **kw):
     old_core_init(self, *k, **kw)
-    self.add_extension(_extension_path)
+    self.add_extension(_ext_path)
 openvino.runtime.Core.__init__ = new_core_init
 
 _factory = NodeFactory()
-_factory.add_extension(_extension_path)
+_factory.add_extension(_ext_path)