ModuleNotFounderRorr：没有名为'numpy.testing.nosetester'的模块

Question

import pandas as pd
import numpy as np
a = np.test()
f = open('E:/lgdata.csv')
data = pd.read_csv(f,index_col = 'id')

x = data.iloc[:,10:12].as_matrix().astype(int)
y = data.iloc[:,9].as_matrix().astype(int)

from sklearn.tree import DecisionTreeClassifier as DTC
dtc = DTC(criterion='entropy')
dtc.fit(x,y)
x=pd.DataFrame(x) 

from sklearn.tree import export_graphviz
with open('tree.dot','w') as f1:
    f1 = export_graphviz(dtc, feature_names = x.columns, out_file = f1)

Answer 1

这是由于numpy和scipy之间的版本不兼容造成的。numpy在其最新版本中不推荐使用numpy.testing.nosetester。

pip install numpy==1.18 # > 1.18
pip install scipy<=0.19.0 # <= 0.19 

和

from sklearn.tree import DecisionTreeClassifier as DTC

触发错误。

pip install numpy==1.18
pip install scipy==1.1.0
pip install scikit-learn==0.21.3