Function initialize_static_globals

numpy/core/src/multiarray/multiarraymodule.c:5028–5062

* Initializes global constants. At some points these need to be cleaned * up, and sometimes we also import them where they are needed. But for * some things, adding an `npy_cache_import` everywhere seems inconvenient. * * These globals should not need the C-layer at all and will be imported * before anything on the C-side is initialized. */

 * before anything on the C-side is initialized.
 */
static int
initialize_static_globals(void)
{
    assert(npy_DTypePromotionError == NULL);
    npy_cache_import(
            "numpy.exceptions", "DTypePromotionError",
            &npy_DTypePromotionError);
    if (npy_DTypePromotionError == NULL) {
        return -1;
    }

    assert(npy_UFuncNoLoopError == NULL);
    npy_cache_import(
            "numpy.core._exceptions", "_UFuncNoLoopError",
            &npy_UFuncNoLoopError);
    if (npy_UFuncNoLoopError == NULL) {
        return -1;
    }

    /* Initialize from certain environment variabels: */
    char *env = getenv("NPY_NUMPY_2_BEHAVIOR");
    if (env != NULL && strcmp(env, "0") != 0) {
        npy_numpy2_behavior = NPY_TRUE;
    }

    env = getenv("NUMPY_WARN_IF_NO_MEM_POLICY");
    if ((env != NULL) && (strncmp(env, "1", 1) == 0)) {
        numpy_warn_if_no_mem_policy = 1;
    }
    else {
        numpy_warn_if_no_mem_policy = 0;
    }

    return 0;
}


static struct PyModuleDef moduledef = {