Incompatible NumPy versions

Oct 13, 2025 by pynkocean.com 114 views

Introduction

When working with Python libraries like NumPy in Google Colab, you may encounter errors that can be frustrating to resolve. One such error is the ModuleNotFoundError: No module named 'numpy._core'. This error typically occurs when you're trying to load a NumPy file created on your local machine in Google Colab. In this article, we'll discuss the possible causes of this error and provide step-by-step solutions to resolve it.

Understanding the Error

The ModuleNotFoundError: No module named 'numpy._core' error occurs when the Python interpreter in Google Colab cannot find the numpy._core module. This module is a part of the NumPy library, which is used for efficient numerical computation in Python. When you try to load a NumPy file created on your local machine in Google Colab, the interpreter may not be able to find the necessary modules, resulting in this error.

Possible Causes

There are several possible causes of the ModuleNotFoundError: No module named 'numpy._core' error in Google Colab:

Incompatible NumPy versions: If the NumPy version used to create the file on your local machine is different from the version used in Google Colab, you may encounter this error.
Missing dependencies: NumPy relies on several dependencies, including BLAS and LAPACK. If these dependencies are not installed or are not compatible with the NumPy version used in Google Colab, you may encounter this error.
Corrupted or incomplete file: If the NumPy file created on your local machine is corrupted or incomplete, you may encounter this error when trying to load it in Google Colab.

Solutions

To resolve the ModuleNotFoundError: No module named 'numpy._core' error in Google Colab, follow these steps:

1. Check the NumPy version

First, check the NumPy version used to create the file on your local machine and the version used in Google Colab. You can check the NumPy version in Google Colab using the following code:

import numpy as np
print(np.__version__)

If the versions are different, try updating the NumPy version in Google Colab using the following code:

!pip install --upgrade numpy

2. Install missing dependencies

NumPy relies on several dependencies, including BLAS and LAPACK. If these dependencies are not installed or are not compatible with the NumPy version used in Google Colab, you may encounter the ModuleNotFoundError: No module named 'numpy._core' error. To install the missing dependencies, run the following code in Google Colab:

!pip install numpy-ml
!pip install scipy
!pip install scikit-learn

3. Check the file integrity

If the NumPy file created on your local machine is corrupted or incomplete, you may encounter the ModuleNotFoundError: No module named 'numpy._core' error when trying to load it in Google Colab. To check the file integrity, try loading the file using the following code:

import numpy as np
try:
    data = np.load('file.npy')
    print(data)
except Exception as e:
    print(e)

If the file is corrupted or incomplete, you may need to recreate the file or contact the file creator for assistance.

4. Use a different file format

If the ModuleNotFoundError: No module named 'numpy._core' error persists, try using a different file format, such as a CSV or JSON file. You can convert the NumPy file to a CSV or JSON file using the following code:

import numpy as np
data = np.load('file.npy')
np.savetxt('file.csv', data, delimiter=',')

5. Use a different library

If none of the above solutions work, try using a different library, such as Pandas or SciPy, to load the file. You can use the following code to load the file using Pandas:

import pandas as pd
data = pd.read_csv('file.csv')

Conclusion

The ModuleNotFoundError: No module named 'numpy._core' error in Google Colab can be frustrating to resolve, but by following the steps outlined in this article, you should be able to resolve the issue. Remember to check the NumPy version, install missing dependencies, check the file integrity, use a different file format, and use a different library if necessary. With these solutions, you should be able to load your NumPy file in Google Colab without encountering the ModuleNotFoundError: No module named 'numpy._core' error.

Additional Tips

Use the latest version of NumPy: Make sure to use the latest version of NumPy in Google Colab to avoid compatibility issues.
Check the file format: Make sure the file format is compatible with the library you're using to load the file.
Use a different library: If none of the above solutions work, try using a different library to load the file.
Contact the file creator: If the file is corrupted or incomplete, contact the file creator for assistance.

Q: What is the ModuleNotFoundError: No module named 'numpy._core' error?

A: The ModuleNotFoundError: No module named 'numpy._core' error is a common issue that occurs when the Python interpreter in Google Colab cannot find the numpy._core module. This module is a part of the NumPy library, which is used for efficient numerical computation in Python.

Q: Why do I get the ModuleNotFoundError: No module named 'numpy._core' error in Google Colab?

A: There are several possible causes of the ModuleNotFoundError: No module named 'numpy._core' error in Google Colab, including:

Incompatible NumPy versions
Missing dependencies
Corrupted or incomplete file
Different file format

Q: How do I resolve the ModuleNotFoundError: No module named 'numpy._core' error in Google Colab?

A: To resolve the ModuleNotFoundError: No module named 'numpy._core' error in Google Colab, follow these steps:

Check the NumPy version used to create the file on your local machine and the version used in Google Colab.
Install missing dependencies, including BLAS and LAPACK.
Check the file integrity and recreate the file if necessary.
Use a different file format, such as a CSV or JSON file.
Use a different library, such as Pandas or SciPy, to load the file.

Q: What are the common causes of the ModuleNotFoundError: No module named 'numpy._core' error in Google Colab?

A: The common causes of the ModuleNotFoundError: No module named 'numpy._core' error in Google Colab include:

Incompatible NumPy versions
Missing dependencies
Corrupted or incomplete file
Different file format

Q: How do I check the NumPy version in Google Colab?

A: To check the NumPy version in Google Colab, use the following code:

import numpy as np
print(np.__version__)

Q: How do I install missing dependencies in Google Colab?

A: To install missing dependencies in Google Colab, use the following code:

!pip install numpy-ml
!pip install scipy
!pip install scikit-learn

Q: How do I check the file integrity in Google Colab?

A: To check the file integrity in Google Colab, use the following code:

import numpy as np
try:
    data = np.load('file.npy')
    print(data)
except Exception as e:
    print(e)

Q: How do I use a different file format in Google Colab?

A: To use a different file format in Google Colab, use the following code:

import numpy as np
data = np.load('file.npy')
np.savetxt('file.csv', data, delimiter=',')

Q: How do I use a different library in Google Colab?

A: To use a different library in Google Colab, use the following code:

import pandas as pd
data = pd.read_csv('file.csv')

Conclusion

Additional Tips

Use the latest version of NumPy in Google Colab to avoid compatibility issues.
Check the file format and use a different library if necessary.
Contact the file creator if the file is corrupted or incomplete.
Use a different library, such as Pandas or SciPy, to load the file.

By following these tips and solutions, you should be able to resolve the ModuleNotFoundError: No module named 'numpy._core' error in Google Colab and load your NumPy file without any issues.