C++ call python function

#include <Python.h>
#include <stdlib.h>

int main() {
   // Set PYTHONPATH TO working directory
   setenv("PYTHONPATH",".",1);

   PyObject *pName, *pModule, *pDict, *pFunc, *pValue, *presult;

   // Initialize the Python Interpreter
   Py_Initialize();

   // Build the name object
   pName = PyString_FromString((char*)"arbName");

   // Load the module object
   pModule = PyImport_Import(pName);

   // pDict is a borrowed reference 
   pDict = PyModule_GetDict(pModule);

   // pFunc is also a borrowed reference 
   pFunc = PyDict_GetItemString(pDict, (char*)"someFunction");

   if (PyCallable_Check(pFunc)) {
       pValue=Py_BuildValue("(z)",(char*)"something");
       PyErr_Print();
       printf("Let's give this a shot!\n");
       presult=PyObject_CallObject(pFunc,pValue);
       PyErr_Print();
   } 
   else 
       PyErr_Print();
  
   printf("Result is %d\n",PyInt_AsLong(presult));
   Py_DECREF(pValue);

   // Clean up
   Py_DECREF(pModule);
   Py_DECREF(pName);

   // Finish the Python Interpreter
   Py_Finalize();
  
   return 0;
}

Source: stackoverflow.com

Double function call javascript

//It means that the first function ($filter) returns another 
//function and then that returned function is called immediately. 
//For Example:
function add(x){
  return function(y){
    return x + y;
  };
}

var addTwo = add(2);

addTwo(4) === 6; // true
add(3)(4) === 7; // true

Source: stackoverflow.com

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