I am trying to use Keras on my machine but I keep getting the error message "AttributeError: module 'tensorflow.python.keras.backend' has no attribute 'get_graph'".

Stack Trace is:

```
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-1-dd13cebc6f04> in <module>
----> 1 import acgan
~/Documents/GitHub/Keras-GAN/acgan/acgan.py in <module>
1 from __future__ import print_function, division
2
----> 3 from keras.datasets import mnist
4 from keras.layers import Input, Dense, Reshape, Flatten, Dropout, multiply
5 from keras.layers import BatchNormalization, Activation, Embedding, ZeroPadding2D
/anaconda3/lib/python3.6/site-packages/keras/__init__.py in <module>
1 from __future__ import absolute_import
2
----> 3 from . import utils
4 from . import activations
5 from . import applications
/anaconda3/lib/python3.6/site-packages/keras/utils/__init__.py in <module>
4 from . import data_utils
5 from . import io_utils
----> 6 from . import conv_utils
7 from . import losses_utils
8 from . import metrics_utils
/anaconda3/lib/python3.6/site-packages/keras/utils/conv_utils.py in <module>
7 from six.moves import range
8 import numpy as np
----> 9 from .. import backend as K
10
11
/anaconda3/lib/python3.6/site-packages/keras/backend/__init__.py in <module>
----> 1 from .load_backend import epsilon
2 from .load_backend import set_epsilon
3 from .load_backend import floatx
4 from .load_backend import set_floatx
5 from .load_backend import cast_to_floatx
/anaconda3/lib/python3.6/site-packages/keras/backend/load_backend.py in <module>
88 elif _BACKEND == 'tensorflow':
89 sys.stderr.write('Using TensorFlow backend.\n')
---> 90 from .tensorflow_backend import *
91 else:
92 # Try and load external backend.
/anaconda3/lib/python3.6/site-packages/keras/backend/tensorflow_backend.py in <module>
52
53 # Private TF Keras utils
---> 54 get_graph = tf_keras_backend.get_graph
55 # learning_phase_scope = tf_keras_backend.learning_phase_scope #
TODO
56 name_scope = tf.name_scope
AttributeError: module 'tensorflow.python.keras.backend' has no attribute 'get_graph'
```

I googled the issue and found this

which tells me that it is tensorflow version related, but not which version to use. I am using Python3 on MacOS.

Thank you for your help.