Bug report

Using TensorFlow backend.
Traceback (most recent call last):

File "", line 1, in
import keras

File "/Applications/anaconda/lib/python3.6/site-packages/keras/init.py", line 3, in
from . import utils

File "/Applications/anaconda/lib/python3.6/site-packages/keras/utils/init.py", line 6, in
from . import conv_utils

File "/Applications/anaconda/lib/python3.6/site-packages/keras/utils/conv_utils.py", line 3, in
from .. import backend as K

File "/Applications/anaconda/lib/python3.6/site-packages/keras/backend/init.py", line 83, in
from .tensorflow_backend import *

File "/Applications/anaconda/lib/python3.6/site-packages/keras/backend/tensorflow_backend.py", line 1, in
import tensorflow as tf

ModuleNotFoundError: No module named 'tensorflow'
Bug summary

Code for reproduction

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import keras
Actual outcome

# If applicable, paste the console output here
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Expected outcome

Matplotlib version

• Operating System:
• Matplotlib Version:
• Python Version:Python 3.6.2 |Continuum Analytics, Inc.| (default, Jul 20 2017, 13:14:59)
  [GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.57)] on darwin
• Jupyter Version (if applicable):
• Other Libraries: