How to fix ImportError: cannot import name 'adam' from 'keras.optimizers'

When using TensorFlow, you might encounter the following error:

ImportError: cannot import name 'adam' from 'keras.optimizers'

This error occurs when Python can’t find the class Adam from the keras.optimizers module.

You might have an import statement as follows:

from keras.optimizers import adam

The right package name is Adam with a capital ‘A’, so you need to change the import name in your source code like this:

from keras.optimizers import Adam

If that doesn’t work, try adding tensorflow before keras as follows:

from tensorflow.keras.optimizers import Adam

Now you can import the Adam optimizer without receiving the error.

UPDATE: In the latest TensorFlow version, a newer Adam optimizer implementation named adam has been added. These import statements can work:

from keras.optimizers import adam
from keras.optimizers import Adam

print(adam)
print(Adam)

Output:

<module 'keras.optimizers.adam' from 'python3.8/site-packages/keras/optimizers/adam.py'>
<class 'keras.optimizers.legacy.adam.Adam'>

The adam with lowercase ‘a’ is the new optimizer implementation. You can call adam.Adam() to create the optimizer:

from keras.optimizers import adam
optimizer = adam.Adam(learning_rate=0.0001)

I’ve tested the import to work in TensorFlow version 2.12.0. If you use older versions, you can use Adam so you don’t need to upgrade TensorFlow.

I hope this tutorial helps. Happy pythoning! 🐍

More Python tutorials