在Python 2.7中将长行文本分成固定宽度的行

Question

我如何在可能的空间分解长字符串,如果没有,插入连字符,除了第一行以外的所有行都有缩进？

所以,对于一个工作函数,breakup():

splitme = "Hello this is a long string and it may contain an extremelylongwordlikethis bye!"
breakup(bigline=splitme, width=20, indent=4)

输出:

Hello this is a long
    string and it
    may contain an
    extremelylongwo-
    rdlikethis bye!

Answer 1

有一个标准的Python模块用于执行此操作:textwrap:

>>> import textwrap
>>> splitme = "Hello this is a long string and it may contain an extremelylongwordlikethis bye!"
>>> textwrap.wrap(splitme, width=10)
['Hello this', 'is a long', 'string and', 'it may', 'contain an', 'extremelyl', 'ongwordlik', 'ethis bye!']
>>> 

但是,在破坏单词时不会插入连字符.该模块有一个快捷功能fill,它连接生成的列表,wrap所以它只是一个字符串.

>>> print textwrap.fill(splitme, width=10)
Hello this
is a long
string and
it may
contain an
extremelyl
ongwordlik
ethis bye!

要控制缩进,请使用关键字参数initial_indent和subsequent_indent:

>>> print textwrap.fill(splitme, width=10, subsequent_indent=' ' * 4)
Hello this
    is a
    long
    string
    and it
    may co
    ntain
    an ext
    remely
    longwo
    rdlike
    this
    bye!
>>>