您可以使用
textwrap模块：
>>> import textwrap>>> strs = "In my project, I have a bunch of strings that are read in from a file. Most of them, when printed in the command console, exceed 80 characters in length and wrap around, looking ugly.">>> print(textwrap.fill(strs, 20))In my project, Ihave a bunch ofstrings that areread in from a file.Most of them, whenprinted in thecommand console,exceed 80 charactersin length and wraparound, lookingugly.
帮助
上
textwrap.fill：
>>> textwrap.fill?Definition: textwrap.fill(text, width=70, **kwargs)Docstring:Fill a single paragraph of text, returning a new string.Reformat the single paragraph in 'text' to fit in lines of no morethan 'width' columns, and return a new string containing the entirewrapped paragraph. As with wrap(), tabs are expanded and otherwhitespace characters converted to space. See TextWrapper class foravailable keyword args to customize wrapping behaviour.
使用
regex，如果你不想合并一行到另一行：
import restrs = """In my project, I have a bunch of strings that are.Read in from a file.Most of them, when printed in the command console, exceed 80.Characters in length and wrap around, looking ugly."""print('n'.join(line.strip() for line in re.findall(r'.{1,40}(?:s+|$)', strs)))# Reading a single line at once:for x in strs.splitlines(): print 'n'.join(line.strip() for line in re.findall(r'.{1,40}(?:s+|$)', x))输出：
In my project, I have a bunch of stringsthat are.Read in from a file.Most of them, when printed in thecommand console, exceed 80.Characters in length and wrap around,looking ugly.
