def load_grammar(gt='Grammar.txt', gp=None, save=True, force=False, logger=None):
 if (logger is None):
  logger = logging.getLogger()
 if (gp is None):
  (head, tail) = os.path.splitext(gt)
  if (tail == '.txt'):
   tail = ''
  gp = (((head + tail) + '.'.join(map(str, sys.version_info))) + '.pickle')
 if (force or (not _newer(gp, gt))):
  logger.info('Generating grammar tables from %s', gt)
  g = pgen.generate_grammar(gt)
  if save:
   logger.info('Writing grammar tables to %s', gp)
   try:
    g.dump(gp)
   except IOError as e:
    logger.info(('Writing failed:' + str(e)))
 else:
  g = grammar.Grammar()
  g.load(gp)
 return g

def load_grammar ( gt = 'Grammar.txt' , gp = None , save = True , force = False , logger = None ) : if ( logger is None ) : logger = logging . getLogger ( ) if ( gp is None ) : ( head , tail ) = os . path . splitext ( gt ) if ( tail == '.txt' ) : tail = '' gp = ( ( ( head + tail ) + '.' . join ( map ( str , sys . version_info ) ) ) + '.pickle' ) if ( force or ( not _newer ( gp , gt ) ) ) : logger . info ( 'Generating grammar tables from %s' , gt ) g = pgen . generate_grammar ( gt ) if save : logger . info ( 'Writing grammar tables to %s' , gp ) try : g . dump ( gp ) except IOError as e : logger . info ( ( 'Writing failed:' + str ( e ) ) ) else : g = grammar . Grammar ( ) g . load ( gp ) return g
load the grammar .