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Groups > comp.lang.python > #71550
| From | alister <alister.nospam.ware@ntlworld.com> |
|---|---|
| Subject | Re: Everything you did not want to know about Unicode in Python 3 |
| Newsgroups | comp.lang.python |
| References | <mailman.9915.1399907977.18130.python-list@python.org> <8P7cv.78617$Sp6.8377@fx15.am4> <537172eb$0$29980$c3e8da3$5496439d@news.astraweb.com> <Kcncv.34412$GL7.204@fx10.am4> <mailman.9974.1399999114.18130.python-list@python.org> |
| Message-ID | <itJcv.77900$dT1.47871@fx12.am4> (permalink) |
| Organization | virginmedia.com |
| Date | 2014-05-14 12:38 +0000 |
On Tue, 13 May 2014 10:08:42 -0600, Ian Kelly wrote: > On Tue, May 13, 2014 at 5:19 AM, alister > <alister.nospam.ware@ntlworld.com> wrote: >> I am only an amateur python coder which is why I asked if I am missing >> something >> >> I could not see any reason to be using the shutil module if all that >> the programm is doing is opening a file, reading it & then printing it. >> >> is it python that causes the issue, the shutil module or just the OS >> not liking the data it is being sent? >> >> an explanation of why this approach is taken would be much appreciated. > > No, that part is perfectly fine. This is exactly what the shutil module > is meant for: providing shell-like operations. Although in this case > the copyfileobj function is quite simple (have yourself a look at the > source -- it just reads from one file and writes to the other in a > loop), in general the Pythonic thing is to avoid reinventing the wheel. > > And since it's so simple, it shouldn't be hard to see that the use of > the shutil module has nothing to do with the Unicode woes here. The > crux of the issue is that a general-purpose command like cat typically > can't know the encoding of its input and can't assume anything about it. > In fact, there may not even be an encoding; cat can be used with binary > data. The only non-destructive approach then is to copy the binary data > straight from the source to the destination with no decoding steps at > all, and trust the user to ensure that the destination will be able to > accommodate the source encoding. Because Python 3 presents stdin and > stdout as text streams however, it makes them more difficult to use with > binary data, which is why Armin sets up all that extra code to make sure > his file objects are binary. I think I understand that in which case I owe Armin an apology, this certainly sounds like a failing in pythons handling of stdout -- Get it up, keep it up... LINUX: Viagra for the PC. -- Chris Abbey
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Everything you did not want to know about Unicode in Python 3 Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-05-12 16:19 +0100
Re: Everything you did not want to know about Unicode in Python 3 alister <alister.nospam.ware@ntlworld.com> - 2014-05-12 17:47 +0000
Re: Everything you did not want to know about Unicode in Python 3 Ian Kelly <ian.g.kelly@gmail.com> - 2014-05-12 12:31 -0600
Re: Everything you did not want to know about Unicode in Python 3 MRAB <python@mrabarnett.plus.com> - 2014-05-12 20:42 +0100
Re: Everything you did not want to know about Unicode in Python 3 Ian Kelly <ian.g.kelly@gmail.com> - 2014-05-12 16:16 -0600
Re: Everything you did not want to know about Unicode in Python 3 Chris Angelico <rosuav@gmail.com> - 2014-05-13 09:42 +1000
Re: Everything you did not want to know about Unicode in Python 3 Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-05-13 01:18 +0000
Re: Everything you did not want to know about Unicode in Python 3 Chris Angelico <rosuav@gmail.com> - 2014-05-13 11:39 +1000
Re: Everything you did not want to know about Unicode in Python 3 alex23 <wuwei23@gmail.com> - 2014-05-13 16:25 +1000
Re: Everything you did not want to know about Unicode in Python 3 Chris Angelico <rosuav@gmail.com> - 2014-05-13 16:32 +1000
Re: Everything you did not want to know about Unicode in Python 3 Mark H Harris <harrismh777@gmail.com> - 2014-05-12 20:58 -0500
Re: Everything you did not want to know about Unicode in Python 3 Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-05-13 03:33 +0100
Re: Everything you did not want to know about Unicode in Python 3 Rustom Mody <rustompmody@gmail.com> - 2014-05-12 22:10 -0700
Re: Everything you did not want to know about Unicode in Python 3 Mark H Harris <harrismh777@gmail.com> - 2014-05-13 00:39 -0500
Re: Everything you did not want to know about Unicode in Python 3 Gene Heskett <gheskett@wdtv.com> - 2014-05-13 01:45 -0400
Re: Everything you did not want to know about Unicode in Python 3 Ben Finney <ben@benfinney.id.au> - 2014-05-13 16:03 +1000
Re: Everything you did not want to know about Unicode in Python 3 Rustom Mody <rustompmody@gmail.com> - 2014-05-12 23:09 -0700
Re: Everything you did not want to know about Unicode in Python 3 Chris Angelico <rosuav@gmail.com> - 2014-05-13 16:18 +1000
Re: Everything you did not want to know about Unicode in Python 3 Mark H Harris <harrismh777@gmail.com> - 2014-05-13 01:32 -0500
Re: Everything you did not want to know about Unicode in Python 3 Mark H Harris <harrismh777@gmail.com> - 2014-05-13 01:32 -0500
Re: Everything you did not want to know about Unicode in Python 3 Roy Smith <roy@panix.com> - 2014-05-13 07:20 -0400
Re: Everything you did not want to know about Unicode in Python 3 Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-05-13 13:39 +0000
Re: Everything you did not want to know about Unicode in Python 3 Chris Angelico <rosuav@gmail.com> - 2014-05-13 23:43 +1000
Re: Everything you did not want to know about Unicode in Python 3 Rustom Mody <rustompmody@gmail.com> - 2014-05-13 07:30 -0700
Re: Everything you did not want to know about Unicode in Python 3 Chris Angelico <rosuav@gmail.com> - 2014-05-14 00:36 +1000
Re: Everything you did not want to know about Unicode in Python 3 Grant Edwards <invalid@invalid.invalid> - 2014-05-13 13:51 +0000
Re: Everything you did not want to know about Unicode in Python 3 alister <alister.nospam.ware@ntlworld.com> - 2014-05-13 14:42 +0000
Re: Everything you did not want to know about Unicode in Python 3 Grant Edwards <invalid@invalid.invalid> - 2014-05-13 15:21 +0000
Re: Everything you did not want to know about Unicode in Python 3 Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-05-13 23:53 +0000
Re: Everything you did not want to know about Unicode in Python 3 Chris Angelico <rosuav@gmail.com> - 2014-05-14 10:08 +1000
Re: Everything you did not want to know about Unicode in Python 3 alister <alister.nospam.ware@ntlworld.com> - 2014-05-14 12:42 +0000
Re: Everything you did not want to know about Unicode in Python 3 Chris Angelico <rosuav@gmail.com> - 2014-05-14 22:52 +1000
Re: Everything you did not want to know about Unicode in Python 3 Grant Edwards <invalid@invalid.invalid> - 2014-05-16 14:46 +0000
Re: Everything you did not want to know about Unicode in Python 3 Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-05-17 01:07 +0000
Re: Everything you did not want to know about Unicode in Python 3 Marko Rauhamaa <marko@pacujo.net> - 2014-05-17 07:19 +0300
Re: Everything you did not want to know about Unicode in Python 3 Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-05-17 09:35 +0100
Re: Everything you did not want to know about Unicode in Python 3 Robert Kern <robert.kern@gmail.com> - 2014-05-17 10:29 +0100
Re: Everything you did not want to know about Unicode in Python 3 Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-05-17 14:15 +0000
Re: Everything you did not want to know about Unicode in Python 3 Robert Kern <robert.kern@gmail.com> - 2014-05-17 22:01 +0100
Re: Everything you did not want to know about Unicode in Python 3 Robert Kern <robert.kern@gmail.com> - 2014-05-17 09:57 +0100
Re: Everything you did not want to know about Unicode in Python 3 Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-05-17 12:07 +0000
Re: Everything you did not want to know about Unicode in Python 3 Robert Kern <robert.kern@gmail.com> - 2014-05-17 22:07 +0100
Re: Everything you did not want to know about Unicode in Python 3 Chris Angelico <rosuav@gmail.com> - 2014-05-17 19:18 +1000
Re: Everything you did not want to know about Unicode in Python 3 Ben Finney <ben@benfinney.id.au> - 2014-05-17 21:05 +1000
[OT] Copyright statements and why they can be useful (was: Everything you did not want to know about Unicode in Python 3) Ben Finney <ben@benfinney.id.au> - 2014-05-14 11:01 +1000
Re: Everything you did not want to know about Unicode in Python 3 Ian Kelly <ian.g.kelly@gmail.com> - 2014-05-14 09:07 -0600
Re: Everything you did not want to know about Unicode in Python 3 Dave Angel <davea@davea.name> - 2014-05-13 21:56 -0400
Re: Everything you did not want to know about Unicode in Python 3 Grant Edwards <invalid@invalid.invalid> - 2014-05-13 13:49 +0000
Re: Everything you did not want to know about Unicode in Python 3 gregor <gregor@ediwo.com> - 2014-05-13 09:27 +0200
Re: Everything you did not want to know about Unicode in Python 3 Johannes Bauer <dfnsonfsduifb@gmx.de> - 2014-05-13 10:08 +0200
Re: Everything you did not want to know about Unicode in Python 3 Marko Rauhamaa <marko@pacujo.net> - 2014-05-13 11:25 +0300
Re: Everything you did not want to know about Unicode in Python 3 Chris Angelico <rosuav@gmail.com> - 2014-05-13 18:38 +1000
Re: Everything you did not want to know about Unicode in Python 3 Marko Rauhamaa <marko@pacujo.net> - 2014-05-13 12:06 +0300
Re: Everything you did not want to know about Unicode in Python 3 Chris Angelico <rosuav@gmail.com> - 2014-05-13 19:29 +1000
Re: Everything you did not want to know about Unicode in Python 3 Steven D'Aprano <steve@pearwood.info> - 2014-05-13 09:44 +0000
Re: Everything you did not want to know about Unicode in Python 3 Johannes Bauer <dfnsonfsduifb@gmx.de> - 2014-05-13 11:38 +0200
Re: Everything you did not want to know about Unicode in Python 3 Johannes Bauer <dfnsonfsduifb@gmx.de> - 2014-05-13 11:46 +0200
Re: Everything you did not want to know about Unicode in Python 3 Marko Rauhamaa <marko@pacujo.net> - 2014-05-13 12:59 +0300
Re: Everything you did not want to know about Unicode in Python 3 Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-05-13 14:30 +0100
Re: Everything you did not want to know about Unicode in Python 3 Chris Angelico <rosuav@gmail.com> - 2014-05-13 23:37 +1000
Re: Everything you did not want to know about Unicode in Python 3 Skip Montanaro <skip@pobox.com> - 2014-05-13 09:02 -0500
Re: Everything you did not want to know about Unicode in Python 3 wxjmfauth@gmail.com - 2014-05-14 00:00 -0700
Re: Everything you did not want to know about Unicode in Python 3 alister <alister.nospam.ware@ntlworld.com> - 2014-05-13 11:19 +0000
Re: Everything you did not want to know about Unicode in Python 3 Ian Kelly <ian.g.kelly@gmail.com> - 2014-05-13 10:08 -0600
Re: Everything you did not want to know about Unicode in Python 3 Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-05-14 00:10 +0000
Re: Everything you did not want to know about Unicode in Python 3 Ethan Furman <ethan@stoneleaf.us> - 2014-05-13 17:53 -0700
Re: Everything you did not want to know about Unicode in Python 3 Terry Reedy <tjreedy@udel.edu> - 2014-05-14 17:47 -0400
Re: Everything you did not want to know about Unicode in Python 3 Antoine Pitrou <antoine@python.org> - 2014-05-16 11:50 +0000
Re: Everything you did not want to know about Unicode in Python 3 wxjmfauth@gmail.com - 2014-05-16 06:20 -0700
Re: Everything you did not want to know about Unicode in Python 3 alister <alister.nospam.ware@ntlworld.com> - 2014-05-14 12:38 +0000
Re: Everything you did not want to know about Unicode in Python 3 Robin Becker <robin@reportlab.com> - 2014-05-14 16:30 +0100
Re: Everything you did not want to know about Unicode in Python 3 Ian Kelly <ian.g.kelly@gmail.com> - 2014-05-14 09:56 -0600
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