def _iter_lexerclasses():
 for (module_name, name, _, _, _) in LEXERS.itervalues():
  if (name not in _lexer_cache):
   _load_lexers(module_name)
  (yield _lexer_cache[name])
 for lexer in find_plugin_lexers():
  (yield lexer)

def _iter_lexerclasses ( ) : for ( module_name , name , _ , _ , _ ) in LEXERS . itervalues ( ) : if ( name not in _lexer_cache ) : _load_lexers ( module_name ) ( yield _lexer_cache [ name ] ) for lexer in find_plugin_lexers ( ) : ( yield lexer )
return an iterator over all lexer classes .