小编use*_*814的帖子

我想SimpleImputer从sklearn导入，我尝试了以下代码：

from sklearn.impute import SimpleImputer

但是，它给出了以下错误：

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-21-14ff80a1bb2f> in <module>()
  2 #!pip install -U scikit-learn
  3 #!pip show scikit-learn
  4 from sklearn.impute import SimpleImputer

 ~\Anaconda3\lib\site-packages\sklearn\impute\__init__.py in <module>()
  2 import typing
  3 
  4 from ._base import MissingIndicator, SimpleImputer
  5 from ._knn import KNNImputer
  6 

  ~\Anaconda3\lib\site-packages\sklearn\impute\_base.py in <module>()
 12 
 13 from ..base import BaseEstimator, TransformerMixin
 14 from ..utils.sparsefuncs import _get_median
 15 from ..utils.validation import check_is_fitted
 16 from ..utils.validation import FLOAT_DTYPES

 ~\Anaconda3\lib\site-packages\sklearn\utils\sparsefuncs.py in <module>()
  6 …

我有一个带有如下字符串的 Pandas 数据框列：

Column A

text moretext 251 St. Louis Apt.54
123 Orange Drive
sometext somemoretext 171 Poplar street
textnew 11th street 
77 yorkshire avenue

我想删除数值之前的文本，即我希望输出是这样的：

Column A

251 St. Louis Apt.54
123 Orange Drive
171 Poplar street
11th street 
77 yorkshire avenue