printing.py 文件源码

def __init__(self, props=None, **more_props):
        if props is None:
            props = {}
        elif isinstance(props, gof.utils.scratchpad):
            self.__update__(props)
        else:
            self.__dict__.update(props)
        self.__dict__.update(more_props)
        # A dict from the object to print to its string
        # representation. If it is a dag and not a tree, it allow to
        # parse each node of the graph only once. They will still be
        # printed many times
        self.memo = {}