如果其他列值相等，则熊猫返回列值

Question

so recentyl im trying to get data from CSV file using python and pandas. Code should return or print data from colum 1 if data from column 2 is equal to some string.

    import pandas as pd
df = pd.read_csv('alerts.csv', sep=';', encoding='latin1')

print(df[['color']['item']].loc[['color']=='red'])

but its seems not working with strings ?

Answer 1

you are not using .loc correctly

.loc need an indexer, and columns such has

indexer = df[df['color']=='red'].index
print(df.loc[indexer,'item'])