[PyOV] Legacy IE Python API removal (openvinotoolkit#20908)

* [PyOV] Legacy IE Python API removal

* clean configs &cmake

* remove ngraph

* remove from yml

* try to fix build

* clean up

* remove old api from python snippets and docs (#170)

* remove old api from python snippets

* pysnippets removal p2

* remove ngraph snippet

* remove old api from docs

* remove migration snippets

* remove compatibility req after refactoring on master

* fix after merge

* fix after merge

* Update docs/articles_en/documentation/openvino_legacy_features/api_2_0_transition_guide/graph_construction.rst

.github/workflows/code_style.yml

@@ -24,8 +24,6 @@ jobs:
         run: |
           python3 -m pip install --upgrade pip
           python3 -m pip install -r ./src/bindings/python/requirements.txt
-          # Add for -DENABLE_PYTHON=ON, no cython
-          python3 -m pip install -r ./src/bindings/python/src/compatibility/openvino/requirements-dev.txt
 
       # Run cmake with -DENABLE_PROFILING_ITT=ON -DSELECTIVE_BUILD=COLLECT in order to enable codestyle check for ITT collector
       - name: CMake configure

.github/workflows/coverage.yml

@@ -41,8 +41,6 @@ jobs:
           python3 -m pip install --upgrade pip
           python3 -m pip install -r ${{ github.workspace }}/src/bindings/python/wheel/requirements-dev.txt
           python3 -m pip install -r ${{ github.workspace }}/src/bindings/python/requirements.txt
-          # For running Python API tests
-          python3 -m pip install -r ${{ github.workspace }}/src/bindings/python/src/compatibility/openvino/requirements-dev.txt
           # For running Paddle frontend unit tests
           python3 -m pip install -r ${{ github.workspace }}/src/frontends/paddle/tests/requirements.txt
           # For running ONNX frontend unit tests

.github/workflows/fedora.yml

@@ -94,7 +94,6 @@ jobs:
           python3 -m pip install -U pip
           # For Python API: build and wheel packaging
           python3 -m pip install -r ${OPENVINO_REPO}/src/bindings/python/wheel/requirements-dev.txt
-          python3 -m pip install -r ${OPENVINO_REPO}/src/bindings/python/src/compatibility/openvino/requirements-dev.txt
 
           # For running ONNX frontend unit tests
           python3 -m pip install --force-reinstall -r ${OPENVINO_REPO}/src/frontends/onnx/tests/requirements.txt

.github/workflows/linux.yml

@@ -128,7 +128,6 @@ jobs:
         run: |
           # For Python API: build and wheel packaging
           python3 -m pip install -r ${OPENVINO_REPO}/src/bindings/python/wheel/requirements-dev.txt
-          python3 -m pip install -r ${OPENVINO_REPO}/src/bindings/python/src/compatibility/openvino/requirements-dev.txt
 
           # For running ONNX frontend unit tests
           python3 -m pip install --force-reinstall -r ${OPENVINO_REPO}/src/frontends/onnx/tests/requirements.txt
@@ -204,7 +203,6 @@ jobs:
         run: |
           /usr/bin/python3.8 -m pip install -U pip
           /usr/bin/python3.8 -m pip install -r ${OPENVINO_REPO}/src/bindings/python/wheel/requirements-dev.txt
-          /usr/bin/python3.8 -m pip install -r ${OPENVINO_REPO}/src/bindings/python/src/compatibility/openvino/requirements-dev.txt
           cmake -UPYTHON* \
                 -DENABLE_PYTHON_PACKAGING=ON \
                 -DENABLE_TESTS=OFF \

.github/workflows/linux_arm64.yml

@@ -127,7 +127,6 @@ jobs:
         run: |
           # For Python API: build and wheel packaging
           python3 -m pip install -r ${OPENVINO_REPO}/src/bindings/python/wheel/requirements-dev.txt
-          python3 -m pip install -r ${OPENVINO_REPO}/src/bindings/python/src/compatibility/openvino/requirements-dev.txt
 
           # For running ONNX frontend unit tests
           python3 -m pip install --force-reinstall -r ${OPENVINO_REPO}/src/frontends/onnx/tests/requirements.txt
@@ -203,7 +202,6 @@ jobs:
         run: |
           /usr/bin/python3.8 -m pip install -U pip
           /usr/bin/python3.8 -m pip install -r ${OPENVINO_REPO}/src/bindings/python/wheel/requirements-dev.txt
-          /usr/bin/python3.8 -m pip install -r ${OPENVINO_REPO}/src/bindings/python/src/compatibility/openvino/requirements-dev.txt
           cmake -UPYTHON* \
                 -DENABLE_PYTHON_PACKAGING=ON \
                 -DENABLE_TESTS=OFF \

.github/workflows/linux_riscv.yml

@@ -108,7 +108,6 @@ jobs:
           python3 -m venv ${OPENVINO_BUILD_DIR}/env
           source ${OPENVINO_BUILD_DIR}/env/bin/activate
           python3 -m pip install -r ${OPENVINO_REPO}/src/bindings/python/wheel/requirements-dev.txt
-          python3 -m pip install -r ${OPENVINO_REPO}/src/bindings/python/src/compatibility/openvino/requirements-dev.txt
           python3 -m pip install conan
 
       - name: Install RISC-V native debian packages

.github/workflows/mac.yml

@@ -116,9 +116,6 @@ jobs:
           python3 -m pip install -r ${{ env.OPENVINO_REPO }}/src/bindings/python/wheel/requirements-dev.txt
           python3 -m pip install -r ${{ env.OPENVINO_REPO }}/src/bindings/python/requirements.txt
 
-          # For running Python API tests
-          python3 -m pip install -r ${{ env.OPENVINO_REPO }}/src/bindings/python/src/compatibility/openvino/requirements-dev.txt
-
           # For running ONNX frontend unit tests
           python3 -m pip install --force-reinstall -r ${{ env.OPENVINO_REPO }}/src/frontends/onnx/tests/requirements.txt
 

.github/workflows/mac_arm64.yml

@@ -115,9 +115,6 @@ jobs:
           python3 -m pip install -r ${{ env.OPENVINO_REPO }}/src/bindings/python/wheel/requirements-dev.txt
           python3 -m pip install -r ${{ env.OPENVINO_REPO }}/src/bindings/python/requirements.txt
 
-          # For running Python API tests
-          python3 -m pip install -r ${{ env.OPENVINO_REPO }}/src/bindings/python/src/compatibility/openvino/requirements-dev.txt
-
           # For running ONNX frontend unit tests
           python3 -m pip install --force-reinstall -r ${{ env.OPENVINO_REPO }}/src/frontends/onnx/tests/requirements.txt
 

.github/workflows/py_checks.yml

@@ -53,42 +53,6 @@ jobs:
           name: samples_diff
           path: samples_diff.diff
 
-      # IE Python API Flake code-style
-      - name: Run flake8 on IE Python API
-        run: python -m flake8 ./ --config=setup.cfg
-        working-directory: src/bindings/python/src/compatibility/openvino
-
-      - name: Create code style diff for IE Python API
-        if: failure()
-        run: |
-          python -m black -l 160 -S ./
-          git diff > ie_python_diff.diff
-        working-directory: src/bindings/python/src/compatibility/openvino
-
-      - uses: actions/upload-artifact@v3
-        if: failure()
-        with:
-          name: ie_python_diff
-          path: ie_python_diff.diff
-
-      # nGraph Python API Flake code-style
-      - name: Run flake8 on nGraph Python API
-        run: python -m flake8 ./src/compatibility/ngraph --config=setup.cfg
-        working-directory: src/bindings/python
-
-      - name: Create code style diff for nGraph Python API
-        if: failure()
-        run: |
-          python -m black -l 160 -S ./
-          git diff > pyngraph_diff.diff
-        working-directory: src/bindings/python/src/compatibility/ngraph
-
-      - uses: actions/upload-artifact@v3
-        if: failure()
-        with:
-          name: pyngraph_diff
-          path: pyngraph_diff.diff
-
       # Python API 2.0 Flake code-style
       - name: Run flake8 on Python API 2.0
         run: python -m flake8 ./src/openvino --config=setup.cfg
@@ -131,25 +95,11 @@ jobs:
         run: python -m flake8 tests/ --config=setup.cfg
         working-directory: src/bindings/python
 
-      # IE Python API mypy check
-      - name: Run mypy on IE Python API
-        run: python -m mypy ./ --config-file ./setup.cfg
-        working-directory: src/bindings/python/src/compatibility/openvino
-
-      # nGraph Python API mypy check
-      - name: Run mypy on nGraph Python API
-        run: python -m mypy ./src/compatibility/ngraph --config-file ./setup.cfg
-        working-directory: src/bindings/python
-
       # Python API 2.0 mypy check
       - name: Run mypy on Python API 2.0
         run: python -m mypy ./src/openvino --config-file ./setup.cfg
         working-directory: src/bindings/python
 
-      - name: Run Bandit
-        run: python -m bandit -r ./ -f screen
-        working-directory: src/bindings/python/src/compatibility/openvino
-
         # layer_tests Flake code-style
       - name: Run flake8 on python tests in openvino/tests/layer_tests
         run: |

.github/workflows/windows.yml

@@ -99,7 +99,6 @@ jobs:
         run: |
           # For Python API: build and wheel packaging
           python3 -m pip install -r ${{ env.OPENVINO_REPO }}/src/bindings/python/wheel/requirements-dev.txt
-          python3 -m pip install -r ${{ env.OPENVINO_REPO }}/src/bindings/python/src/compatibility/openvino/requirements-dev.txt
 
           # For running ONNX frontend unit tests
           python3 -m pip install --force-reinstall -r ${{ env.OPENVINO_REPO }}/src/frontends/onnx/tests/requirements.txt

src/bindings/python/CMakeLists.txt

@@ -62,8 +62,6 @@ endif()
 # Check python requirements
 #
 
-set(ie_build_python_req "${OpenVINOPython_SOURCE_DIR}/src/compatibility/openvino/requirements-dev.txt")
-
 function(ov_check_python_build_conditions)
     # user explicitly specified ENABLE_PYTHON=ON
     if(ENABLE_PYTHON)
@@ -94,42 +92,19 @@ function(ov_check_python_build_conditions)
         message(${message_mode} "Python 3.x Interpreter and Development.Module components are not found. OpenVINO Python API will be turned off (ENABLE_PYTHON is OFF)")
     endif()
 
-    # check for Cython requirement for build IE API 1.0
-    ov_check_pip_packages(REQUIREMENTS_FILE ${ie_build_python_req}
-                          RESULT_VAR ie_build_python_req_FOUND
-                          WARNING_MESSAGE "install python3 -m pip install -r ${ie_build_python_req} for IE API 1.0 requirements"
-                          MESSAGE_MODE TRACE)
-
-    # cython can be installed as a debian package, so pip requirements can be unsatisfied
-    # so, let's check to find cython anyway
-    if(NOT ie_build_python_req_FOUND)
-        find_package(Cython QUIET
-                     PATHS "${OpenVINOPython_SOURCE_DIR}/src/compatibility/openvino/cmake"
-                     NO_CMAKE_FIND_ROOT_PATH
-                     NO_DEFAULT_PATH)
-        if(CYTHON_VERSION VERSION_GREATER_EQUAL 0.29)
-            set(ie_build_python_req_FOUND ON)
-        else()
-            message(${message_mode} "Python requirements '${ie_build_python_req}' are missed, IE Python API 1.0 will not be built (ENABLE_PYTHON is OFF)")
-        endif()
-    endif()
-
     if(NOT OV_GENERATOR_MULTI_CONFIG AND CMAKE_BUILD_TYPE STREQUAL "Debug" AND CMAKE_DEBUG_POSTFIX)
         set(python_debug ON)
         message(${message_mode} "Building python bindings in debug configuration is not supported on your platform (ENABLE_PYTHON is OFF)")
     else()
         set(python_debug OFF)
     endif()
 
-    if((Python3_Development.Module_FOUND OR Python3_Development_FOUND) AND
-        ie_build_python_req_FOUND AND NOT python_debug)
+    if((Python3_Development.Module_FOUND OR Python3_Development_FOUND) AND NOT python_debug)
         set(ENABLE_PYTHON_DEFAULT ON PARENT_SCOPE)
     else()
         set(ENABLE_PYTHON_DEFAULT OFF PARENT_SCOPE)
     endif()
 
-    # to disable API 1.0
-    set(ie_build_python_req_FOUND ${ie_build_python_req_FOUND} PARENT_SCOPE)
 endfunction()
 
 ov_check_python_build_conditions()
@@ -155,7 +130,6 @@ function(ov_check_init_files_alignment init_files)
 endfunction()
 
 set(INIT_FILES_RUNTIME "${OpenVINOPython_SOURCE_DIR}/src/openvino/__init__.py"
-                       "${OpenVINOPython_SOURCE_DIR}/src/compatibility/openvino/__init__.py"
                        "${OpenVINO_SOURCE_DIR}/tools/ovc/openvino/__init__.py"
                        "${OpenVINO_SOURCE_DIR}/tools/benchmark_tool/openvino/__init__.py")
 
@@ -209,7 +183,7 @@ ov_dependent_option(ENABLE_WHEEL "Build wheel packages for PyPI" ${ENABLE_WHEEL_
 
 if(NOT ENABLE_PYTHON)
     if(CMAKE_SOURCE_DIR STREQUAL OpenVINOPython_SOURCE_DIR)
-        message(FATAL_ERROR "Python OpenVINO API build requirements are not satisfied. Please, install ${ie_build_python_req}")
+        message(FATAL_ERROR "Python OpenVINO API build requirements are not satisfied.")
     else()
         return()
     endif()
@@ -236,15 +210,8 @@ if(NOT pybind11_FOUND)
     add_subdirectory(thirdparty/pybind11 EXCLUDE_FROM_ALL)
 endif()
 
-add_subdirectory(src/compatibility/pyngraph)
 add_subdirectory(src/pyopenvino)
 
-if(ie_build_python_req_FOUND)
-    add_subdirectory(src/compatibility/openvino)
-else()
-    message(WARNING "NOTE: Python API for OpenVINO 1.0 is disabled")
-endif()
-
 #
 # Packaging
 #
@@ -312,7 +279,6 @@ macro(ov_define_setup_py_dependencies)
         endif()
     endforeach()
 
-    file(GLOB_RECURSE compat_ngraph_py_files ${OpenVINOPython_SOURCE_DIR}/src/compatibility/*.py)
     file(GLOB_RECURSE openvino_py_files ${OpenVINOPython_SOURCE_DIR}/src/openvino/*.py)
 
     list(APPEND ov_setup_py_deps

src/bindings/python/README.md

@@ -21,7 +21,6 @@ OpenVINO PYTHON API has the following structure:
 
 * [docs](./docs/) - folder that contains developer documentation and code examples.
 * [src](./src/) - folder with all source files for Python API.
-    * [src/compatibility](./src/compatibility/) - sources for compatibility API, including older modules like `ngraph` and `openvino.inference_engine`.
     * [src/openvino](./src/openvino/) - Python sources.
     * [src/openvino/preprocess](./src/openvino/preprocess/) - Torchvision to OpenVINO preprocessing converter.
     * [src/pyopenvino](./src/pyopenvino/) - C++ sources.

src/bindings/python/docs/build.md

@@ -41,7 +41,6 @@ OpenVINO can be built based on specific virtual environments such as [venv](http
     cd <openvino_repo>
     pip install -r src/bindings/python/requirements.txt
     pip install -r src/bindings/python/requirements_test.txt
-    pip install -r src/bindings/python/src/compatibility/openvino/requirements-dev.txt
     ```
     If `-DENABLE_WHEEL=ON` flag is present in `cmake` command, additionally install wheel requirements:
     ```

src/bindings/python/setup.cfg

@@ -67,7 +67,6 @@ docstring-convention = google
 enable-extensions = G
 per-file-ignores =
     src/openvino/runtime/*/ops.py: VNE001,VNE003
-    src/compatibility/ngraph/*: C101,C812,C819,CCE001,E800,N806,P101,RST201,RST202,RST203,RST206,VNE001,VNE003
     src/openvino/preprocess/torchvision/*: N801, VNE001
     *__init__.py: F401