python - 从元组到 Pandas 中的多列

Question

我如何转换这个数据框

                                          location  value                       
0                   (Richmond, Virginia, nan, USA)    100                       
1              (New York City, New York, nan, USA)    200                       

为此:

    city            state       region    country   value
0   Richmond        Virginia    nan       USA       100
1   New York City   New York    nan       USA       200

请注意，第一个数据框中的 location 列包含元组。我想在 location 列中创建四列。

Answer 1

new_col_list = ['city','state','regions','country']
for n,col in enumerate(new_col_list):
    df[col] = df['location'].apply(lambda location: location[n])

df = df.drop('location',axis=1)