Epsi95

你可以尝试使用 writerow 并创建逗号分隔符

import numpy as np
import csv

I=np.array([[0, 1],
       [0, 3],
       [1, 2],
       [1, 4],
       [2, 5],
       [3, 4],
       [3, 6],
       [4, 5],
       [4, 7],
       [5, 8],
       [6, 7],
       [7, 8]])

with open('Test123.csv', 'w') as f:
    writer = csv.writer(f)

    # write the data
    writer.writerow(map(lambda x: f'{x[0]}, {x[1]}', zip(*I.T)))

你不需要 re 使用 ast.literal_eval

>>> s = "[('entryA', 'typeA'), ('entryB', 'typeB'), ('entryC', 'typeC'), ('entryD', 'typeD')]"
>>> from ast import literal_eval
>>> literal_eval(s)
[('entryA', 'typeA'), ('entryB', 'typeB'), ('entryC', 'typeC'), ('entryD', 'typeD')]
>>> out = [i[0] for i in literal_eval(s)]
>>> out
['entryA', 'entryB', 'entryC', 'entryD']