chore: import upstream snapshot with attribution

cmake/python_module.cmake

@@ -0,0 +1,56 @@
+# Find if a Python module is installed
+# Found at http://www.cmake.org/pipermail/cmake/2011-January/041666.html
+# To use do: find_python_module(PyQt4 REQUIRED)
+function(find_python_module module)
+  string(TOUPPER ${module} module_upper)
+  if(NOT PY_${module_upper})
+    if(ARGC GREATER 1 AND ARGV1 STREQUAL "REQUIRED")
+      set(${module}_FIND_REQUIRED TRUE)
+    else()
+      set(${module}_FIND_REQUIRED FALSE)
+    endif()
+    # A module's location is usually a directory, but for binary modules
+    # it's a .so file.
+    execute_process(
+      COMMAND
+        "${PYTHON_EXECUTABLE}" "-c"
+        "import re, ${module}; print(re.compile('/__init__.py.*').sub('',${module}.__file__))"
+      RESULT_VARIABLE _${module}_status
+      OUTPUT_VARIABLE _${module}_location
+      ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE)
+    if(NOT _${module}_status)
+      set(PY_${module_upper}
+          ${_${module}_location}
+          CACHE STRING "Location of Python module ${module}")
+    endif()
+  endif()
+  find_package_handle_standard_args(PY_${module} DEFAULT_MSG PY_${module_upper})
+  if(NOT PY_${module_upper}_FOUND AND ${module}_FIND_REQUIRED)
+    message(FATAL_ERROR "python module ${module} is not found")
+  endif()
+
+  execute_process(
+    COMMAND "${PYTHON_EXECUTABLE}" "-c"
+            "import sys, ${module}; sys.stdout.write(${module}.__version__)"
+    OUTPUT_VARIABLE _${module}_version
+    RESULT_VARIABLE _${module}_status
+    ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE)
+  if(NOT _${module}_status)
+    set(PY_${module_upper}_VERSION
+        ${_${module}_version}
+        CACHE STRING "Version of Python module ${module}")
+  endif()
+
+  set(PY_${module_upper}_FOUND
+      ${PY_${module_upper}_FOUND}
+      PARENT_SCOPE)
+  set(PY_${module_upper}_VERSION
+      ${PY_${module_upper}_VERSION}
+      PARENT_SCOPE)
+endfunction()
+
+function(check_py_version py_version)
+  if(py_version VERSION_LESS 3.10)
+    message(FATAL_ERROR "Paddle only supports Python version >= 3.10 now!")
+  endif()
+endfunction()