Remove nodes from graph or reset entire default graph

When working with the default global graph, is it possible to remove nodes after they've been added, or alternatively to reset the default graph to empty? When working with TF interactively in IPython, I find myself having to restart the kernel repeatedly. I would like to be able to experiment with graphs more easily if possible.

Update 11/2/2016


Old stuff

There's reset_default_graph, but not part of public API (I think it should be, does someone wants to file an issue on GitHub?)

My work-around to reset things is this:

    from tensorflow.python.framework import ops
    sess = tf.InteractiveSession()


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