literal_eval.py

import pandas as pd
from ast import literal_eval

df = pd.DataFrame({
    'fruits': ["['apple', 'banana']", "['orange', 'pear']", "['grape', 'kiwi', 'peach']"]
})

# convert the string representation of lists to actual lists
df['fruits'] = df['fruits'].apply(literal_eval)

# expand the lists into rows
df = df.explode('fruits').reset_index(drop=True)
df.index.name = 'id'

print(df)