Thanks. I was wondering what happened to that idea.
I’d like to see it revived, it seems a perfectly reasonable addition to the
string object to me.
And now you’ve written a prototype, there’s a straightforward proposal.
-CHB
On Wed, Mar 4, 2020 at 4:54 PM Cameron Simpson <c...@cskk.id.au> wrote:
> On 03Apr2019 14:54, Steven D'Aprano <st...@pearwood.info> wrote:
> >Now imagine it's five years from now, and you're using Python 3.11, and
> >you came across code somebody (possibly even you!) wrote:
> >
> > ifname = ifname.cutsuffix(':')
> >
> >Would you say "Damn, I wish that method had never been added!" and
> >replace it with the earlier code above?
>
> Just a late followup to this thread.
>
> The other month I found myself doing the endwith/s=s[:-n] shuffle yet
> again, and wrote a pair of cutprefix and cutsuffix functions. They're
> available in my "cs.lex" PyPI module if anyone wants to use them. Their
> signature is:
>
> prefix = cutsuffix(original_string, suffix)
> if prefix is original_string:
> # suffix not present ...
> else:
> # suffix present, proceed using prefix
>
> and the converse for cutprefix.
>
> Cheers,
> Cameron Simpson <c...@cskk.id.au>
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--
Christopher Barker, PhD
Python Language Consulting
- Teaching
- Scientific Software Development
- Desktop GUI and Web Development
- wxPython, numpy, scipy, Cython
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