def gettoppixel(self, celly, onscreen=True):
        if onscreen and (celly < 0 or celly >= self.height):
            return None
        return celly * self._cellheight
Turn a datetime object into an ISO8601 formatted date.
dataset/ETHPy150Open asweigart/pygcurse/pygcurse/__init__.py/PygcurseSurface.gettoppixel--crossover with--dataset/ETHPy150Open flask-restful/flask-restful/flask_restful/fields.py/_iso8601