__init__中的Pycharm类型提示不起作用

Question

我正在使用Python2.7和PyCharm Community 2016.3.2。我有以下代码片段：

class ParentNode(node.Node):
    """ParentNode is a subclass of Node but also takes an additional child_nodes parameter.
    @type child_nodes: dict[str: child_node.ChildNode]
    """
    def __init__(self, name, node_type, FSPs, CTT_distributions, TMR_distributions,
                 prob_on_convoy, rep_rndstrm, child_nodes):
        """ParentNode is a subclass of Node but also takes an additional child_nodes parameter.
        @type child_nodes: dict[str: child_node.ChildNode]
        """
        node.Node.__init__(self, name, node_type, FSPs, CTT_distributions, TMR_distributions,
                           prob_on_convoy, rep_rndstrm)
        self.network_status = 'parent'
        self.child_nodes = child_nodes

问题是，当我在self.child_nodes或child_nodes上悬停时，推断的类型显示为Any而不是Dict[str, ChildNode]。我不明白为什么我在docstring中的类型提示在这种情况下不起作用。

Answer 1

替换

dict[str: child_node.ChildNode]

使用

dict[str, child_node.ChildNode]