On Thu, Apr 2, 2020 at 6:07 AM Stephen J. Turnbull <
turnbull.stephen...@u.tsukuba.ac.jp> wrote:
> Christopher Barker writes:
>
> > The funny thing is, in this thread, while I dont really see the need for
> > adding += to StringIO to make a string builder, I kind of like the idea
> of
> > adding += to the File protocol -- for all file-like objects.
>
> Yah, but you also get
>
> outfile.seek(some_random_place)
> outfile += something
>
Is that not exactly the same as what you can do with .write() now?
> I can see
> folks with severe space constraints "reusing the buffer" with
> something like
>
> outfile.seek(0)
> a_loop_of_somesort:
> outfile += something
> size = outfile.tell()
> outfile.seek(0)
> built_string = outfile.read(size)
>
is this any different than:
outfile.seek(0)
a_loop_of_somesort:
outfile.write(something)
size = outfile.tell()
outfile.seek(0)
built_string = outfile.read(size)
I can't see how the += notation makes that any more likely to happen.
but anyway, it's an argument against the idea of using StringIO as a
"buffer" for strings.
-CHB
--
Christopher Barker, PhD
Python Language Consulting
- Teaching
- Scientific Software Development
- Desktop GUI and Web Development
- wxPython, numpy, scipy, Cython
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