def _find_table_group(h5file, ifo=None):
exclude = ('<STR_LIT>',)<EOL>if ifo is None:<EOL><INDENT>try:<EOL><INDENT>ifo, = [key for key in h5file if key not in exclude]<EOL><DEDENT>except ValueError as exc:<EOL><INDENT>exc.args = ("<STR_LIT>"<EOL>"<STR_LIT>"<EOL>"<STR_LIT>"<EOL>"<STR_LIT>",)<EOL>raise<EOL><DEDENT><DEDENT>try:<EOL><INDENT>return h5file[ifo], ifo<EOL><DEDENT>except KeyError as exc:<EOL><INDENT>exc.args = ("<STR_LIT>" % ifo,)<EOL>raise<EOL><DEDENT>
Find the right `h5py.Group` within the given `h5py.File`