[Python-ideas] str.rreplace
random832 at fastmail.us
random832 at fastmail.us
Fri Jan 24 21:33:48 CET 2014
On Fri, Jan 24, 2014, at 14:17, MRAB wrote:
> On 2014-01-24 16:56, Antoine Pitrou wrote:
> > On Fri, 24 Jan 2014 08:47:14 -0800 (PST)
> > Ram Rachum <ram.rachum at gmail.com> wrote:
> >> I propose implementing str.rreplace. (It'll be to str.replace what
> >> str.rsplit is to str.split.)
> >
> > I suppose it only differs when the count parameter is supplied?
> >
> Not necessarily:
>
> >>> 'aaa'.replace('aa', 'x')
> 'xa'
> >>> 'aaa'.rreplace('aa', 'x')
> 'ax'
>>>'aaa'[::-1].replace('aa'[::-1],'x'[::-1])[::-1]
'ax'
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