textwrap模块

fill  将多行文本按照指定的宽度和格式输出

s = "Look into my eyes, look into my eyes, the eyes, the eyes, 
the eyes, not around the eyes, don't look around the eyes, 
look into my eyes, you're under."

import textwrap
print(textwrap.fill(s, 70))
print(textwrap.fill(s, 40, initial_indent='    ', subsequent_indent='    '))