ImportError: cannot import name np_utils

For keras > 2.0, please use from keras.utils import to_categorical instead.

Example of usage will be to_categorical(y, num_classes=None)

They moved everything to just utils, so if you are using tf 2.x or higher version of keras it is just tf.keras.utils or keras.utils.

So for example: keras.utils.np_utils.to_categorical -> keras.utils.to_categorical

I was actually having similar issue while using

from keras.utils import to_categorical

But I managed to solve it with:

from tensorflow.keras.utils import to_categorical

from tensorflow.python.keras.utils import tf_utils ImportError: cannot import name 'tf_utils'

pip install keras==2.1.5 -i https://pypi.tuna.tsinghua.edu.cn/simple

https://blog.csdn.net/CLOUD_J/article/details/103101247

This works in Google Colab:

import tensorflow as tf

y_train=tf.keras.utils.to_categorical(y_train,num_classes=7)

I had a similar issue in a build system:

• Keras throwing: ImportError: cannot import name np_utils
• But also tensorflow assertion failure: AttributeError: type object 'NewBase' has no attribute 'is_abstract'

The problem in my case was the build environment, for some reason I didn't investigate, had an old six version (six 1.5.0) (compared to my local env). The issue was solved by installing the most recent six version (1.11.0 when writing this).

pip install six -U

Try to install the old version using Anaconda:

conda install tensorflow-gpu==1.2.1

Open Anaconda Prompt --> Write this command : **conda install keras**



(base) C:\>conda `enter code here`install keras
Collecting package metadata: done
Solving environment: done

## Package Plan ##

  environment location: C:\Users\sinem.secgin\AppData\Local\Continuum\anaconda3

  added / updated specs:
    - keras


The following packages will be downloaded:

    package                    |            build
    ---------------------------|-----------------
    _tflow_select-2.3.0        |              mkl           3 KB
    absl-py-0.7.1              |           py37_0         158 KB
    astor-0.7.1                |           py37_0          44 KB
    ca-certificates-2019.5.15  |                0         166 KB
    certifi-2019.6.16          |           py37_0         155 KB
    conda-4.7.5                |           py37_0         3.0 MB
    conda-package-handling-1.3.10|           py37_0         280 KB
    gast-0.2.2                 |           py37_0         138 KB
    grpcio-1.16.1              |   py37h351948d_1         947 KB
    keras-2.2.4                |                0           5 KB
    keras-applications-1.0.8   |             py_0          33 KB
    keras-base-2.2.4           |           py37_0         489 KB
    keras-preprocessing-1.1.0  |             py_1          36 KB
    libmklml-2019.0.3          |                0        21.4 MB
    libprotobuf-3.8.0          |       h7bd577a_0         2.2 MB
    markdown-3.1.1             |           py37_0         132 KB
    mock-3.0.5                 |           py37_0          47 KB
    openssl-1.1.1c             |       he774522_1         5.7 MB
    protobuf-3.8.0             |   py37h33f27b4_0         581 KB
    tensorboard-1.13.1         |   py37h33f27b4_0         3.3 MB
    tensorflow-1.13.1          |mkl_py37h9463c59_0           4 KB
    tensorflow-base-1.13.1     |mkl_py37hcaf7020_0        49.4 MB
    tensorflow-estimator-1.13.0|             py_0         205 KB
    termcolor-1.1.0            |           py37_1           7 KB
    ------------------------------------------------------------
                                           Total:        88.4 MB

The following NEW packages will be INSTALLED:

  _tflow_select      pkgs/main/win-64::_tflow_select-2.3.0-mkl
  absl-py            pkgs/main/win-64::absl-py-0.7.1-py37_0
  astor              pkgs/main/win-64::astor-0.7.1-py37_0
  conda-package-han~ pkgs/main/win-64::conda-package-handling-1.3.10-py37_0
  gast               pkgs/main/win-64::gast-0.2.2-py37_0
  grpcio             pkgs/main/win-64::grpcio-1.16.1-py37h351948d_1
  keras              pkgs/main/win-64::keras-2.2.4-0
  keras-applications pkgs/main/noarch::keras-applications-1.0.8-py_0
  keras-base         pkgs/main/win-64::keras-base-2.2.4-py37_0
  keras-preprocessi~ pkgs/main/noarch::keras-preprocessing-1.1.0-py_1
  libmklml           pkgs/main/win-64::libmklml-2019.0.3-0
  libprotobuf        pkgs/main/win-64::libprotobuf-3.8.0-h7bd577a_0
  markdown           pkgs/main/win-64::markdown-3.1.1-py37_0
  mock               pkgs/main/win-64::mock-3.0.5-py37_0
  protobuf           pkgs/main/win-64::protobuf-3.8.0-py37h33f27b4_0
  tensorboard        pkgs/main/win-64::tensorboard-1.13.1-py37h33f27b4_0
  tensorflow         pkgs/main/win-64::tensorflow-1.13.1-mkl_py37h9463c59_0
  tensorflow-base    pkgs/main/win-64::tensorflow-base-1.13.1-mkl_py37hcaf7020_0
  tensorflow-estima~ pkgs/main/noarch::tensorflow-estimator-1.13.0-py_0
  termcolor          pkgs/main/win-64::termcolor-1.1.0-py37_1

Proceed ([y]/n)? y
Y

If you are using TensorFlow backend with Keras make sure your keras.json file states its backend is Tensorflow. The code below worked for me:

import os
os.environ['KERAS_BACKEND']='tensorflow'
#Anything from keras

Cheers hope I helped somebody. OBS: I was using Anaconda and Spyder.

This problem seems to have different solutions depending on the situation. Here's yet another solution that helped me when I had those exact symptoms:

pip install enum34

Installing np_utils, future or a different version of numpy or Theano didn't help for me. The problem was due to Keras that use enum, that only exists in Python3. Enum34 is a backport of Python3's enum to Python2.

I was using:

• python2.7
• Keras==2.3.0
• Theano==1.0.4 as a backend

In tf 2.x or higher, Keras has been packed into TensorFlow, you now call everything from TensorFlow. np_utils has been moved to util you can simply use it by doing:

tf.keras.utils.to_categorical(
y, num_classes=None, dtype='float32'
)

Here is my solution:

from keras import utils

utils.to_categorical(...)