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- import pandas as pd
- logs = pd.read_csv('/datasets/logs.csv')
- logs['email'] = logs['email'].fillna(value='')
- logs=logs[logs['source']=="None"].replace("None", "email")
- print(logs['source'].value_counts('None')) #возвращает 1.0 - получается одно значение "None" есть
- none = logs[logs['source']=='None'] #датафрейм, где в столбце source есть значение "None"
- print(none) #возвращает пустой dataframe
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