def get_active_graph()

in pythonflow/core.py [0:0]

• 5 lines of code
• 3 McCabe index (conditional complexity)

    def get_active_graph(graph=None):
        """
        Obtain the currently active graph instance by returning the explicitly given graph or using
        the default graph.

        Parameters
        ----------
        graph : Graph or None
            Graph to return or `None` to use the default graph.

        Raises
        ------
        ValueError
            If no `Graph` instance can be obtained.
        """
        graph = graph or Graph._globals.default_graph
        if not graph:
            raise ValueError("`graph` must be given explicitly or a default graph must be set")
        return graph