Function npy_cache_import

numpy/core/src/common/npy_import.h:19–30

! \brief Fetch and cache Python function. * * Import a Python function and cache it for use. The function checks if * cache is NULL, and if not NULL imports the Python function specified by * \a module and \a function, increments its reference count, and stores * the result in \a cache. Usually \a cache will be a static variable and * should be initialized to NULL. On error \a cache will con

 * @param cache Storage location for imported function.
 */
static inline void
npy_cache_import(const char *module, const char *attr, PyObject **cache)
{
    if (NPY_UNLIKELY(*cache == NULL)) {
        PyObject *mod = PyImport_ImportModule(module);

        if (mod != NULL) {
            *cache = PyObject_GetAttrString(mod, attr);
            Py_DECREF(mod);
        }
    }
}

#endif  /* NUMPY_CORE_SRC_COMMON_NPY_IMPORT_H_ */