在分隔符上拆分pandas df行，然后根据索引重命名另一行

import pandas as pd

data = {'row1': ['A|B|C', 'D|E|F', 'G|H|I'],
        'row2': ['1|2|3', '4|5|6', '7|8|9']}
df = pd.DataFrame(data)

df['row1'] = df['row1'].apply(lambda x: x.split('|'))
df['row2'] = df['row2'].apply(lambda x: x.split('|'))

df.rename(index={0: 'new_row1', 1: 'new_row2', 2: 'new_row3'}, inplace=True)

import pandas as pd

data = {'row1': ['A|B|C', 'D|E|F', 'G|H|I'],
        'row2': ['1|2|3', '4|5|6', '7|8|9']}
df = pd.DataFrame(data)

df['row1'] = df['row1'].apply(lambda x: x.split('|'))
df['row2'] = df['row2'].apply(lambda x: x.split('|'))

df.rename(index={0: 'new_row1', 1: 'new_row2', 2: 'new_row3'}, inplace=True)