python - 拆分每个第 N 个字符的字符串，并使用不同的分隔符将其连接回来

Question

我尝试在具有不同分隔符的句子中使用文本换行。这正是我想作为输出得到的:

'here are third-party[SEPARATOR1]extensions like[SEPARATOR2]Scener that allow us[SEPARATOR3]to watch content.'

这是我第一次尝试 .join()和 wrap() ，不成功:

[In] : 
sentence = '''here are third-party extensions like Scener that allow us to watch content.'''

separator = '[SEPARATOR]'

text = separator.join(wrap(sentence, 20))

[Out] :
'here are third-party[SEPARATOR]extensions like[SEPARATOR]Scener that allow us[SEPARATOR]to watch content.'

然后，我在分隔符内尝试了 for 循环，但也没有成功......:

[In] : 
sentence = '''here are third-party extensions like Scener that allow us to watch content.'''

for i in range(1, 4):
    separator = '[SEPARATOR' + str(i) + ']'

text = separator.join(wrap(sentence, 20))

[Out] :
'here are third-party[SEPARATOR3]extensions like[SEPARATOR3]Scener that allow us[SEPARATOR3]to watch content.'

也许结合 .split()和 .join() function 可以是做我想做的更好的方法，但我找不到方法。请问，您对如何实现这一目标有任何想法吗？

Answer 1

这是您可以尝试的单衬:

text = ''.join([(f'[SEPARATOR{i}]' if i else '') + w
                for i, w in enumerate(wrap(sentence, 20))])