message: msvc: add dllimport for ParseExceptionT
diff: #include "exception.h"
  #include <Python.h>
  -extern PyObject *ParseExceptionT;
  +
  +#ifdef _WIN32
  + #define DLLEXTERN __declspec(dllimport)
  +#else
  + #define DLLEXTERN
  +#endif
  +
  +extern DLLEXTERN PyObject *ParseExceptionT;
  void raise_py_error() {
  try {
  