def _datetime_for_table_name(self, table_name):
m = self._table_re.match(table_name)<EOL>dt = datetime.strptime(m.group(<NUM_LIT:1>), '<STR_LIT>')<EOL>return dt<EOL>
Return a :py:class:`datetime.datetime` object for the date of the
data in the specified table name.

:param table_name: name of the table
:type table_name: str
:return: datetime that the table holds data for
:rtype: datetime.datetime