(self, tree, filename)
Some fixers need to maintain tree-wide state.
        This method is called once, at the start of tree fix-up.

        tree - the root node of the tree to be processed.
        filename - the name of the file the tree came from.
Some fixers need to maintain tree-wide state.
        This method is called once, at the start of tree fix-up.
Some fixers need to maintain tree - wide state . This method is called once at the start of tree fix - up .
def start_tree(self, tree, filename):
        """Some fixers need to maintain tree-wide state.
        This method is called once, at the start of tree fix-up.

        tree - the root node of the tree to be processed.
        filename - the name of the file the tree came from.
        """
        self.used_names = tree.used_names
        self.set_filename(filename)
        self.numbers = itertools.count(1)
        self.first_log = True
def start_tree ( self , tree , filename ) : self . used_names = tree . used_names self . set_filename ( filename ) self . numbers = itertools . count ( 1 ) self . first_log = True