Python PEP8 打印没有缩进的包装字符串

问题描述

对此可能有一个简单的答案，只是不知道如何从我的搜索中梳理出来.

There is probably an easy answer for this, just not sure how to tease it out of my searches.

我在我的 python 代码中遵守 PEP8，并且我目前正在将 OptionParser 用于我正在编写的脚本.为了防止行超过 80，我在需要的地方使用反斜杠.

I adhere to PEP8 in my python code, and I'm currently using OptionParser for a script I'm writing. To prevent lines from going beyond a with of 80, I use the backslash where needed.

例如:

if __name__=='__main__':
    usage = '%prog [options]\nWithout any options, will display 10 random \
    users of each type.'
    parser = OptionParser(usage)

反斜杠后的缩进导致:

~$ ./er_usersearch -h
Usage: er_usersearch [options]
Without any options, will display 10 random     users of each type.

随机"之后的那个差距让我感到困扰.我可以这样做:

That gap after "random" bugs me. I could do:

 if __name__=='__main__':
    usage = '%prog [options]\nWithout any options, will display 10 random \
 users of each type.'
    parser = OptionParser(usage)

但这也同样困扰着我.这似乎很愚蠢:

But that bugs me just as much. This seems silly:

 if __name__=='__main__':
    usage = ''.join(['%prog [options]\nWithout any options, will display',
                     ' 10 random users of each type.'])
    parser = OptionParser(usage)

一定有更好的方法吗?

推荐答案

使用 自动字符串连接 + 隐式续行:

long_string = ("Line 1 "
               "Line 2 "
               "Line 3 ")


>>> long_string
'Line 1 Line 2 Line 3 '

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