python sklearn機器學習庫 安裝
阿新 • • 發佈:2019-02-17
1、準備工作
安裝sklearn之前,我們需要先安裝numpy,scipy函式庫。
下載對應本機的python版本。
2、安裝sklearn機器學習庫
下載壓縮包之後,解該壓縮包壓縮。使用CMD進入sklearn資料夾,執行
python setup.py install
即安裝完成。
3、報錯解決
我們在匯入sklearn時往往會報錯。
- >>> import sklearn
- Traceback (most recent call last):
- File "<stdin>", line 1, in <module>
-
File "sklearn/__init__.py"
- from . import __check_build
- File "sklearn/__check_build/__init__.py", line 46, in <module>
- raise_build_error(e)
- File "sklearn/__check_build/__init__.py", line 41, in raise_build_error
-
%s""" % (e, local_dir, ''.join(dir_content).strip(), msg))
- ImportError: No module named _check_build
- ___________________________________________________________________________
- Contents of sklearn/__check_build:
- __init__.py __init__.pyc _check_build.c
- _check_build.pyx setup.py setup.pyc
-
___________________________________________________________________________
- It seems that scikit-learn has not been built correctly.
- If you have installed scikit-learn from source, please do not forget
- to build the package before using it: run `python setup.py install` or
- `make` in the source directory.
- If you have used an installer, please check that it is suited for your
- Python version, your operating system and your platform.
>>from sklearn import datasets
Traceback (most recent call last):
File "E:\P\plot_ols.py", line 28, in
from sklearn import datasets, linear_model
File "C:\Python27\lib\site-packages\sklearn\linear_model\__init__.py", line 12, in
from .base import LinearRegression
File "C:\Python27\lib\site-packages\sklearn\linear_model\base.py", line 29, in
from ..utils.sparsefuncs import mean_variance_axis0, inplace_column_scale
ImportError: cannot import name inplace_column_scale
當遇到這個錯誤時,我們應該把以下檔案刪掉。python27\Lib\site-packages\sklearn\utils\sparsefuncs.pyd
當我們遇到類似 “ImportError:cannot import name **”這樣的問題時,我們執行
pip install -U scikit-learn
這樣問題就解決了。。