fabianp/scikit-learn — comment on commit e7bf4345b2652b94c422f3d46e0734fc0f4e700b
File: sklearn/linear_model/ridge.py line 66
By ogrisel:

On scipy 0.8.0 I get:

```
AttributeError: 'module' object has no attribute 'MatrixLinearOperator'
```

Would it be possible to backport a pure python version of this in the `sklearn.utils.fixes` package? Or maybe fallback on the old version of Ridge when `MatrixLinearOperator` is not available.