'Returns the indexes found in a get_info() output
:type info: list of lines
:param info: result of utility method get_info()
:return: maximum index number'

def _get_entry_indexes(self, info):

    indexes = []
    for line in self.get_info_lines():
        try:
            (key, value) = line.split('=')
            if (key == 'index'):
                indexes.append(int(value))
        except ValueError:
            pass
    return indexes
