sortedlist.py 文件源码

def recursive_repr(func):
    """Decorator to prevent infinite repr recursion."""
    repr_running = set()

    @wraps(func)
    def wrapper(self):
        key = id(self), get_ident()

        if key in repr_running:
            return '...'

        repr_running.add(key)

        try:
            return func(self)
        finally:
            repr_running.discard(key)

    return wrapper