[FIXED] ImportError when importing metric from sklearn

Issue

When I am trying to import a metric from sklearn, I get the following error:

from sklearn.metrics import mean_absolute_percentage_error

ImportError: cannot import name 'mean_absolute_percentage_error' from 'sklearn.metrics'

/Users/carter/opt/anaconda3/lib/python3.8/site-packages/sklearn/metrics/__init__.py)

I have used conda update all, and reinstalled scikit-learn to no avail. Any other reasons this might happen and solutions?

Solution

The function mean_absolute_percentage_error is new in scikit-learn version 0.24 as noted in the documentation.

As of December 2020, the latest version of scikit-learn available from Anaconda is v0.23.2, so that's why you're not able to import mean_absolute_percentage_error.

You could try installing the latest version from source instead, or implement the function you need yourself. The source is available here if you'd like to take a look.

Answered By - htl