python Python Pandas中字符串的GROUP BY

Posted 2021-05-09

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from pandas import DataFrame as df
import pandas as pd

lics = pd.read_csv("/Users/Mah/Temp/csvdb/license-union-norownum.csv")

licsgr = lics.groupby('gem')['license'].apply(list)
licsgr.columns = ['gem', 'licenses']

# But how do we convert Series to DataFrame in Pandas?

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