Method _set_element_datetime

src/pptx/oxml/coreprops.py:256–271

Set date/time value of child element having `prop_name` to `value`.

(self, prop_name: str, value: dt.datetime)

        return timestamp

    def _set_element_datetime(self, prop_name: str, value: dt.datetime) -> None:
        """Set date/time value of child element having `prop_name` to `value`."""
        if not isinstance(value, dt.datetime):  # pyright: ignore[reportUnnecessaryIsInstance]
            tmpl = "property requires <type 'datetime.datetime'> object, got %s"
            raise ValueError(tmpl % type(value))
        element = self._get_or_add(prop_name)
        dt_str = value.strftime("%Y-%m-%dT%H:%M:%SZ")
        element.text = dt_str
        if prop_name in ("created", "modified"):
            # These two require an explicit 'xsi:type="dcterms:W3CDTF"'
            # attribute. The first and last line are a hack required to add
            # the xsi namespace to the root element rather than each child
            # element in which it is referenced
            self.set(qn("xsi:foo"), "bar")
            element.set(qn("xsi:type"), "dcterms:W3CDTF")
            del self.attrib[qn("xsi:foo")]

    def _set_element_text(self, prop_name: str, value: str) -> None:
        """Set string value of `name` property to `value`."""