I agree with the arguments the OP brings forward. Maybe, it should be the case of having an `StringIO` and `BytesIO` subclass? Or better yet, just a class that wraps those, and hide away the other file-like methods and behaviors?
That would keep the new class semantically as a string, and they could implement all of the str/bytes methods and attributes so as to be a drop-in replacement - _and_ add a proper `__setitem__` so that one could have a proper "mutable string". It ust would use StringIO/BytesIo as its "engine". Such code would take like, 100 lines (most of them just to forward/reimplement some of the legacy str methods), be an effective drop-in replacement, require no change to Python - it could even be put now in Pypi - and, maybe, even reach Python 3.9 in time, because, as I said, I agree with your points. On Mon, 30 Mar 2020 at 12:06, <jdve...@gmail.com> wrote: > I completely agree with Andrew Barnert. > > I just want to add a little comment about overriding the `+=` (and `+`) > operator for StringIO. Since StringIO is a stream --not a string--, I think > `StringIO` should continue to use the common interface for streams in > Python. `write()` and `read()` are fine for streams (and files) and you can > find similar `write` and `read` functions in other languages. I cannot see > any advantage on departing from this convention. > _______________________________________________ > Python-ideas mailing list -- python-ideas@python.org > To unsubscribe send an email to python-ideas-le...@python.org > https://mail.python.org/mailman3/lists/python-ideas.python.org/ > Message archived at > https://mail.python.org/archives/list/python-ideas@python.org/message/LFGQVJDOGBBJ7CIYHISM4X4IZDWLGFII/ > Code of Conduct: http://python.org/psf/codeofconduct/ >
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