对dataframe的字段的处理

Question

对dataframe的字段的处理

怎么把这个keywords列里面的name 提取出来转成x|x|x的格式。

Answer 1

import pandas as pd

dic1={'id':['862','8844','7890'],'keywords':[[{'id':931,'name':'jealousy'},{'id':932,'name':'jealousy'}],[{'id':931,'name':'jealousy'},{'id':932,'name':'jealousy'}],[{'id':931,'name':'jealousy'},{'id':932,'name':'jealousy'}]]}
df=pd.DataFrame(dic1)
print(df)

for index, row in df.iterrows():
    str1 = row['keywords'][0]['name']
    for i in range(1, len(row['keywords'])):
        str1 = str1 + '|' + row['keywords'][i]['name']
    row['keywords'] = str1


print(df)

运行结果

     id                                           keywords
0   862  [{'id': 931, 'name': 'jealousy'}, {'id': 932, ...
1  8844  [{'id': 931, 'name': 'jealousy'}, {'id': 932, ...
2  7890  [{'id': 931, 'name': 'jealousy'}, {'id': 932, ...
     id           keywords
0   862  jealousy|jealousy
1  8844  jealousy|jealousy
2  7890  jealousy|jealousy

若有帮助，谢谢采纳~