def viewing_user(self):
        return getattr(self, '_viewing_user', None)
Convert an Excel style coordinate to (row, colum) tuple
dataset/ETHPy150Open simonw/bugle_project/bugle_project/bugle/models.py/Blast.viewing_user--crossover with--dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/openpyxl-2.3.0-b2/openpyxl/utils/__init__.py/coordinate_to_tuple