import_array.h

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#include <RDGeneral/export.h>
#ifndef RDKIT_IMPORT_ARRAY_INCLUDED
#define RDKIT_IMPORT_ARRAY_INCLUDED
 
#define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION
#include <numpy/arrayobject.h>
 
#if PY_MAJOR_VERSION >= 3
void *rdkit_import_array()
#else
void rdkit_import_array()
#endif
{
  // numpy's import_array is defined as a macro that expands into a block
  // statement that inlines a return. In python3 it returns a NULL value
  // (to comply with the Py_InitModule signature) so it can't be called
  // directly from within the BOOST_PYTHON_MODULE init function (that
  // returns void)
  import_array();
#if PY_MAJOR_VERSION >= 3
  return nullptr;
#endif
}
 
#endif