def contains_metastrings(s):
 if ((s.find(_table_names_key) >= 0) or (s.find(_columns) >= 0) or (s.find(_data) >= 0) or (s.find(_rowid) >= 0)):
  return 1
 else:
  return 0

def contains_metastrings ( s ) : if ( ( s . find ( _table_names_key ) >= 0 ) or ( s . find ( _columns ) >= 0 ) or ( s . find ( _data ) >= 0 ) or ( s . find ( _rowid ) >= 0 ) ) : return 1 else : return 0
verify that the given string does not contain any metadata strings that might interfere with dbtables database operation .