Update

Author: almilosz

src/bindings/python/src/pyopenvino/core/core.cpp

@@ -5,8 +5,10 @@
 #include "pyopenvino/core/core.hpp"
 
 #include <pybind11/stl.h>
+#include <pybind11/stl/filesystem.h>
 #include <pybind11/typing.h>
 
+#include <filesystem>
 #include <fstream>
 #include <openvino/core/any.hpp>
 #include <openvino/runtime/core.hpp>
@@ -675,7 +677,7 @@ void regclass_Core(py::module m) {
         )");
 
     cls.def("add_extension",
-            static_cast<void (ov::Core::*)(const std::string&)>(&ov::Core::add_extension),
+            static_cast<void (ov::Core::*)(const std::filesystem::path&)>(&ov::Core::add_extension),
             py::arg("library_path"),
             R"(
                 Registers an extension to a Core object.
@@ -708,11 +710,7 @@ void regclass_Core(py::module m) {
     cls.def(
         "add_extension",
         [](ov::Core& self, py::object dtype) {
-            if (py::isinstance(dtype, py::module_::import("pathlib").attr("Path"))) {
-                self.add_extension(Common::utils::to_fs_path(dtype));
-            } else {
-                self.add_extension(PyOpExtension(dtype));
-            }
+            self.add_extension(PyOpExtension(dtype));
         },
         py::arg("custom_op"),
         R"(

src/bindings/python/src/pyopenvino/frontend/manager.cpp

@@ -59,7 +59,7 @@ void regclass_frontend_FrontEndManager(py::module m) {
                 :param library_path: Path (absolute or relative) or name of a frontend library. If name is
                 provided, depending on platform, it will be wrapped with shared library suffix and prefix
                 to identify library full name.
-                :type library_path: Union[str, bytes, pathlib.Path]
+                :type library_path: Union[str, pathlib.Path]
 
                 :return: None
              )");

src/bindings/python/tests/test_runtime/test_core.py

@@ -448,9 +448,11 @@ def __init__(self) -> None:
 
 def test_add_extension_from_path():
     core = Core()
-    lib_name = "non_existent_extension.dll" if sys.platform == "win32" else "libnon_existent_extension.so"
+    lib_name = "openvino_template_extension.dll" if sys.platform == "win32" else "libopenvino_template_extension.so"
+    core.add_extension(Path(lib_name))
+
     with pytest.raises(RuntimeError) as e:
-        core.add_extension(Path(lib_name))
+        core.add_extension(Path("non_existing_extension"))
     assert "Cannot load library" in str(e.value)
 
 

src/frontends/onnx/tests/tests_python/test_frontendmanager.py

@@ -59,7 +59,7 @@ def test_pickle():
 
 
 @mock_needed
-def test_register_front_end_with_pathlib_path():
+def test_register_front_end_path():
     fem2 = FrontEndManager()
     fem2.register_front_end(MOCK_PY_FRONTEND_NAME, Path(mock_py_fe_path_l[0]))
     fe = fem2.load_by_framework(framework=MOCK_PY_FRONTEND_NAME)