Python pandas的“索引”对象没有属性“ str”

Question

I'm trying to run this code, but it returns this error

import pandas as pd

df = pd.read_csv('olympics.csv', index_col=0, skiprows=1)

for col in df.columns:
    if col[:2]=='01':
        df.rename(columns={col:'Gold'+col[4:]}, inplace=True)
    if col[:2]=='02':
        df.rename(columns={col:'Silver'+col[4:]}, inplace=True)
    if col[:2]=='03':
        df.rename(columns={col:'Bronze'+col[4:]}, inplace=True)
    if col[:1]=='№':
        df.rename(columns={col:'#'+col[1:]}, inplace=True)

names_ids = df.index.str.split('\s\(') # split the index by '('

AttributeError: 'Index' object has no attribute 'str'

How can I solve it? I can't find it.

Thank you!

Answer 1

解决方法（在@Shijo的评论中发布）

df.index.to_series().str.split('\s\(')