[Python-Dev] str.lstrip bug?

[lou xiao]

ths, i misunderstood the method

2015-03-11 1:33 GMT+08:00 Chris Angelico <rosuav at gmail.com>:

> On Wed, Mar 11, 2015 at 4:27 AM, lou xiao <lox.xiao at gmail.com> wrote:
> > I find a bug in str.lstrip, when i call str.lstrip, i get this result.
> >
> > tiny➜ ~ python
> > Python 2.7.5+ (default, Feb 27 2014, 19:37:08)
> > [GCC 4.8.1] on linux2
> > Type "help", "copyright", "credits" or "license" for more information.
> >>>> a='device_info'
> >>>> a.lstrip('device')
> > '_info'
> >>>> a.lstrip('device_')
> > 'nfo'
> >>>>
> > tiny➜ ~ uname -a
> > Linux tinymint 3.11.0-12-generic #19-Ubuntu SMP Wed Oct 9 16:20:46 UTC
> 2013
> > x86_64 x86_64 x86_64 GNU/Linux
> > tiny➜ ~
>
> It's not a bug, because it isn't doing what you think it is. It strips
> a *set of characters*, not a prefix string.
>
> https://docs.python.org/2/library/stdtypes.html#str.lstrip
> https://docs.python.org/3/library/stdtypes.html#str.lstrip
>
> ChrisA
>
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