I am trying to run a script, but I struggle already at the imports. This import

from keras.preprocessing.image import save_img

raises the following error:

AttributeError: module 'tensorflow' has no attribute 'name_scope'.

I am using the following packages.

Keras                     2.2.2,                     
Keras-Applications        1.0.4,                   
Keras-Preprocessing       1.0.2,                   
tensorflow                1.9.0,                     
tensorflow-gpu            1.9.0                

I was unable to reproduce with the same versions of the keras and tensorflow, reinstalling keras and tensorflow, may solve the issue, please use commands below:

pip install --upgrade pip setuptools wheel
pip install -I tensorflow
pip install -I keras

NOTE: The -I parameter stands for ignore installed package.