get_tabular_separator
=====================================

.. py:function:: petpal.io.table.get_tabular_separator(ext: str) -> str

   Get the separator corresponding to a given tabular data filetype.

   '.csv' will return ',' while '.tsv' and '.txt' will return '        '. Any other input will raise a
   ValueError.

   :param ext: Extension to get matching separator for.
   :type ext: str

   :returns: *sep (str)* -- Separator matched from extension.

   :raises ValueError: If extension is not .csv or .tsv.