ImportError: cannot import name ‘Imputer‘ from ‘sklearn.preprocessing‘

from sklearn.preprocessing import Imputer

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importError                               Traceback (most recent call last)
 in 
----> 1 from sklearn.preprocessing import Imputer

importError: cannot import name 'Imputer' from 'sklearn.preprocessing' (C:Anacondalibsite-packagessklearnpreprocessing__init__.py)

此库已更换地址

from sklearn.impute import SimpleImputer