[Python] Can't import from sklearn.linear_model import LinearRegression

I have been using iPython notebook to use sklearn for a few months now with no problem and suddenly I can't get the command:

from sklearn.linear_model import LinearRegression


to work. I get the error:

---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
<ipython-input-45-9436dcd63a89> in <module>()
----> 1 from sklearn.linear_model import LinearRegression

/Users/michaelreinhard/anaconda/lib/python2.7/site-packages/sklearn/linear_model/__init__.py in <module>()
15 from .least_angle import (Lars, LassoLars, lars_path, LarsCV, LassoLarsCV,
16 LassoLarsIC)
---> 17 from .coordinate_descent import (Lasso, ElasticNet, LassoCV, ElasticNetCV,
18 lasso_path, enet_path, MultiTaskLasso,
19 MultiTaskElasticNet, MultiTaskElasticNetCV,

/Users/michaelreinhard/anaconda/lib/python2.7/site-packages/sklearn/linear_model/coordinate_descent.py in <module>()
27 from ..utils import ConvergenceWarning
28
---> 29 from . import cd_fast
30
31

ImportError: cannot import name cd_fast


I have tried a lot of different things suggested on the internet, uninstalling and reinstalling Anaconda, etc., but all I have managed to do is to get the error message to change.

The interesting thing is that the command:

from sklearn.datasets import load_iris
iris = load_iris()


Worked fine.

Any ideas on what my next step should be or what the problem is?

Continue reading...