Can't import sklearn.metrics.accuracy_score

Question

I have successfully installed sklearn. However, when I run sklearn.metrics.accuracy_score, it givies an error ImportError: No module named 'sklearn.metrics.accuracy_score'

sklearn version is 0.17

numpy version is 1.8.2

scipy version is 0.13.3

Btw I'm using python3. Thanks.

Answer 1

accuracy_score is a function, not a module, you have to import it from a module, thus

from sklearn.metrics import accuracy_score #works
print(accuracy_score([1, 1, 0], [1, 0, 1]))

gives

0.333333333333

as expected.

and not

import sklearn.metrics.accuracy_score #error

Answer 2

from sklearn.metrics import accuracy_score

print(accuracy_score([1, 1, 0], [1, 0, 1]))

Note: it's metrics not metric