如何将dataframe列中的嵌套字典拆分成新行？

import pandas as pd
from pandas.io.json import json_normalize

data = {'id': [1, 2],
        'info': [{'name': 'John', 'age': 25, 'city': 'New York'},
                 {'name': 'Alice', 'age': 30, 'city': 'San Francisco'}]}
df = pd.DataFrame(data)

df_normalized = pd.json_normalize(df['info'])

df_merged = pd.concat([df.drop('info', axis=1), df_normalized], axis=1)