Python
Keras
ModuleNotFoundError
Machine Learning
Deep Learning

No module named 'keras.wrappers'

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Introduction

ModuleNotFoundError: No module named 'keras.wrappers' usually means your code and your installed Keras stack do not agree about where the scikit-learn integration lives. This is a version and package-layout problem, not a mysterious import failure. The fix is to identify which Keras distribution you are using and then import the wrapper from the location that matches that environment, or switch to the currently maintained wrapper package.

Why This Error Happens

Older examples on the internet use several different import paths for Keras wrappers:

  • 'keras.wrappers.scikit_learn'
  • 'tensorflow.keras.wrappers.scikit_learn'
  • external packages such as scikeras.wrappers

Those paths do not all exist in every environment. The confusion comes from the fact that Keras has existed both as a standalone package and as TensorFlow's bundled tf.keras, and the scikit-learn integration story has shifted over time.

So the first step is to check what you actually installed.

python
1import keras
2import tensorflow as tf
3
4print("keras version:", keras.__version__)
5print("tensorflow version:", tf.__version__)

Once you know the environment, the import problem becomes much easier to reason about.

The Most Practical Modern Fix: Use SciKeras

In many current Python environments, the cleanest answer is to use SciKeras, which is designed to integrate Keras models with scikit-learn style workflows.

python
1from scikeras.wrappers import KerasClassifier
2from tensorflow import keras
3
4
5def build_model():
6    model = keras.Sequential([
7        keras.layers.Input(shape=(4,)),
8        keras.layers.Dense(8, activation="relu"),
9        keras.layers.Dense(1, activation="sigmoid"),
10    ])
11    model.compile(optimizer="adam", loss="binary_crossentropy", metrics=["accuracy"])
12    return model
13
14clf = KerasClassifier(model=build_model, epochs=5, batch_size=16, verbose=0)

This approach avoids depending on older import paths that may not exist in your installed Keras package.

If You Are Following Older tf.keras Examples

Some older TensorFlow examples use tensorflow.keras.wrappers.scikit_learn. If your environment still supports it, that import may work. If it does not, that is usually a signal that you are mixing code examples from a different version line than the one you actually installed.

The key lesson is not “keep trying import paths until one works.” The key lesson is “match the code sample to the installed API surface.”

Confirm the Package Source Before Fixing the Import

In mixed environments, one machine may have standalone keras, another may rely only on tensorflow, and a third may have both installed with different versions. That creates confusing import behavior.

A quick inspection helps.

python
1import keras
2import tensorflow as tf
3
4print(keras)
5print(tf.keras)

If the project depends on scikit-learn style wrappers, pinning the exact package combination in the environment file is usually better than leaving wrapper imports to chance.

Avoid Outdated Tutorial Drift

This error appears a lot because machine-learning tutorials age quickly. A post written for one version family may still rank highly in search results even though the import path has moved or the recommended integration package has changed.

That is why fixing the error is not just about correcting one line. It is about bringing the tutorial, the installed packages, and the actual API contract back into alignment.

A Good Defensive Strategy

If the project needs scikit-learn cross-validation, pipelines, or grid search around Keras models, pick one supported wrapper strategy and standardize it across the codebase. In practice that often means:

  1. install the intended wrapper package explicitly
  2. document the import path in the project setup
  3. pin compatible versions in requirements or environment files

That turns a recurring import failure into a solved environment problem.

Common Pitfalls

  • Copying an old Keras wrapper import from a tutorial without checking whether it matches the installed package versions.
  • Mixing standalone keras and tensorflow installations and assuming their wrapper modules will always line up.
  • Treating the error as though the wrapper concept is gone entirely when the real issue is often the import path or chosen package.
  • Leaving the dependency environment unpinned so the wrapper behavior changes between machines.
  • Fixing the import on one file while leaving the rest of the project on a different Keras integration strategy.

Summary

  • 'No module named 'keras.wrappers' is usually a package-layout or version-mismatch issue.'
  • Older Keras and TensorFlow examples do not all use the same wrapper import path.
  • In many current environments, SciKeras is the most practical scikit-learn wrapper solution.
  • The real fix is to align the import path with the installed package set and pin that environment.
  • Standardize one wrapper strategy so the error does not keep reappearing across the project.

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