.. _program_listing_file_interfaces_python.h:

Program Listing for File python.h
=================================

|exhale_lsh| :ref:`Return to documentation for file <file_interfaces_python.h>` (``interfaces/python.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #pragma once
   #ifdef LUPNT_WITH_PYTHON
   #  include <pybind11/eigen.h>
   #  include <pybind11/embed.h>
   #  include <pybind11/pybind11.h>
   
   #  include <optional>
   
   namespace py = pybind11;
   
   namespace lupnt {
   
     class PythonInterpreter {
     public:
       static PythonInterpreter& GetInstance() {
         static PythonInterpreter instance;
         return instance;
       }
   
     private:
       std::optional<py::scoped_interpreter> python_;  // Manages Python interpreter
   
       PythonInterpreter() {
         // Only initialize if we're not already in a Python process
         if (!Py_IsInitialized()) {
           python_.emplace();
         }
       }
       ~PythonInterpreter() = default;
   
       PythonInterpreter(const PythonInterpreter&) = delete;
       PythonInterpreter& operator=(const PythonInterpreter&) = delete;
     };
   
     extern py::module_ py_pnt;
     extern py::module_ py_pio;
     extern py::module_ py_go;
     extern py::module_ py_plot;
     extern py::module_ py_plt;
   }  // namespace lupnt
   #endif  // LUPNT_WITH_PYTHON