首页 cannot import name 'isnull' from 'pandas.core.dtypes.missing' (D:\python\s\lib\site-packages\pandas\core\dtypes\missing.py)

cannot import name 'isnull' from 'pandas.core.dtypes.missing' (D:\python\s\lib\site-packages\pandas\core\dtypes\missing.py)

时间: 2023-09-06 15:10:59 浏览: 157

Python pandas库中的isnull()详解

问题描述 python的pandas库中有一个十分便利的isnull()函数，它可以用来判断缺失值，我们通过几个例子学习它的使用方法。首先我们创建一个dataframe,其中有一些数据为缺失值。 import pandas as pd import numpy as np df = pd.DataFrame(np.random.randint(10,99,size=(10,5))) df.iloc[4:6,0] = np.nan df.iloc[5:7,2] = np.nan df.iloc[7,3] = np.nan df.iloc[2:3,4] = np.nan 得到的结

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