CODEWITHSUNDEEP
pythonipythontensorflowjupyter
bradden_gross
bradden_gross

Reputation: 678

Error instantiating the InteractiveSession using TensorFlow and Jupyter

Recently I've been getting an error using the InteractiveSession in TensorFlow in my Jupyter / IPython notebook. The problem is so straight forward to recreate, my entire code is:

import tensorflow as tf

sess = tf.InteractiveSession()

sess.graph

And the output is:

Exception ignored in: <bound method BaseSession.__del__ of <tensorflow.python.client.session.InteractiveSession object at 0x11a4e89b0>>
Traceback (most recent call last):
  File "/Users/.../anaconda/lib/python3.5/site-packages/tensorflow/python/client/session.py", line 140, in __del__
    self.close()
  File "/Users/.../anaconda/lib/python3.5/site-packages/tensorflow/python/client/session.py", line 905, in close
    self._default_session.__exit__(None, None, None)
  File "/Users/brad/anaconda/lib/python3.5/contextlib.py", line 66, in __exit__
    next(self.gen)
  File "/Users/.../anaconda/lib/python3.5/site-packages/tensorflow/python/framework/ops.py", line 3215, in get_controller
    assert self.stack[-1] is default
AssertionError: 
Out[3]:
<tensorflow.python.framework.ops.Graph at 0x10685dc50>

So the graph call works, but I can't interpret this error or get rid of it.

Upvotes: 1

Views: 1388

Answers (1)

mrry
mrry

Reputation: 126184

This error message is caused by a bug in TensorFlow versions 0.8 and earlier. The bug is triggered when a new tf.InteractiveSession is created before an old one is deleted by the Python garbage collector. It was fixed in TensorFlow version 0.9, so upgrading to the latest version should resolve the issue.

Upvotes: 1

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