I've written something like this far too many times: lines = (line.rstrip('\n') for line in open(frame).readlines())
It's not unworkable, but it's definitely common to want the lines without the newlines. The corresponding .writelines() hits me less, but it's still a concern. I slightly shorter and more intuitive spelling would be convenient. On the model of print(), it seems like a 'sep=' argument would make sense, while being backwards compatible. Obviously the default would need to be current behavior. On Tue, Jul 13, 2021, 10:08 AM Christopher Barker <python...@gmail.com> wrote: > On Tue, Jul 13, 2021 at 9:00 AM <2qdxy4rzwzuui...@potatochowder.com> > wrote: > >> As it stands, writelines is consistent with readlines. Both preserve >> newlines. >> > > indeed. so if this idea is to be done (and there's something to be said > for it), I think a similar option should be added to readlines as well -- > striping the newline. > > A couple other notes: > > This would highlight the whole "a string is an iterable of strings" > problem :-( -- should strings be special cased? I think not, that's an > issue that Python programmers have to learn at one point or another anyway. > > As for whether it always puts in a newline, or if you can specify what you > want to put in , I vote for the newline -- newlines are not the same on all > platforms (though TextIO does translate), but I think it would get a bit > confusing if someone explicitly put in "\n| and got "\r\n". > > And the name IS writeLINES -- so why would anyone expect to use it for > anything else -- we still have str.join() after all. > > -CHB > -- > Christopher Barker, PhD (Chris) > > Python Language Consulting > - Teaching > - Scientific Software Development > - Desktop GUI and Web Development > - wxPython, numpy, scipy, Cython > _______________________________________________ > 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/TWZHPL7ZP3MQTIAAQTEAOWZW43P3LIW3/ > Code of Conduct: http://python.org/psf/codeofconduct/ >
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