Function array_datetime_as_string

numpy/core/src/multiarray/datetime_strings.c:1333–1598

* This is the Python-exposed datetime_as_string function. */

 * This is the Python-exposed datetime_as_string function.
 */
NPY_NO_EXPORT PyObject *
array_datetime_as_string(PyObject *NPY_UNUSED(self), PyObject *args,
                                PyObject *kwds)
{
    PyObject *arr_in = NULL, *unit_in = NULL, *timezone_obj = NULL;
    NPY_DATETIMEUNIT unit;
    NPY_CASTING casting = NPY_SAME_KIND_CASTING;

    int local = 0;
    int utc = 0;
    PyArray_DatetimeMetaData *meta;
    int strsize;

    PyArrayObject *ret = NULL;

    NpyIter *iter = NULL;
    PyArrayObject *op[2] = {NULL, NULL};
    PyArray_Descr *op_dtypes[2] = {NULL, NULL};
    npy_uint32 flags, op_flags[2];

    static char *kwlist[] = {"arr", "unit", "timezone", "casting", NULL};

    if(!PyArg_ParseTupleAndKeywords(args, kwds,
                                "O|OOO&:datetime_as_string", kwlist,
                                &arr_in,
                                &unit_in,
                                &timezone_obj,
                                &PyArray_CastingConverter, &casting)) {
        return NULL;
    }

    /* Claim a reference to timezone for later */
    Py_XINCREF(timezone_obj);

    op[0] = (PyArrayObject *)PyArray_FROM_O(arr_in);
    if (op[0] == NULL) {
        goto fail;
    }
    if (PyArray_DESCR(op[0])->type_num != NPY_DATETIME) {
        PyErr_SetString(PyExc_TypeError,
                    "input must have type NumPy datetime");
        goto fail;
    }

    /* Get the datetime metadata */
    meta = get_datetime_metadata_from_dtype(PyArray_DESCR(op[0]));
    if (meta == NULL) {
        goto fail;
    }

    /* Use the metadata's unit for printing by default */
    unit = meta->base;

    /* Parse the input unit if provided */
    if (unit_in != NULL && unit_in != Py_None) {
        PyObject *strobj;

        if (PyBytes_Check(unit_in)) {