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Groups > comp.lang.python > #80764
| References | <bcc9a923-4a68-45b2-9854-a6f750e71ee7@googlegroups.com> <pan.2014.11.14.13.59.28.822000@nowhere.invalid> |
|---|---|
| Date | 2014-11-14 09:09 -0500 |
| Subject | Re: fileno() not supported in Python 3.1 |
| From | Joel Goldstick <joel.goldstick@gmail.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.15819.1415974187.18130.python-list@python.org> (permalink) |
On Fri, Nov 14, 2014 at 8:59 AM, Nobody <nobody@nowhere.invalid> wrote: > On Thu, 13 Nov 2014 15:48:32 -0800, satishmlmlml wrote: > >> import sys >> for stream in (sys.stdin, sys.stdout, sys.stderr): >> print(stream.fileno()) >> >> >> io.UnsupportedOperation: fileno >> >> Is there a workaround? > > Try: > sys.stdin.buffer.fileno() > > or maybe > > sys.stdin.buffer.raw.fileno() > > In Python 3.x, sys.stdin isn't actually a "file", it's a TextIOWrapper > around a BufferedReader around a file (io.FileIO). > > TextIOWrapper is responsible for converting a stream of bytes to a stream > of (Unicode) characters. BufferedReader is responsible for buffering (like > C stdio). > A little off topic, but why not upgrade to 3.4 if you are learning python. I run 2.7, but I've read that much has improved in the 3.x series since 3.1 > > -- > https://mail.python.org/mailman/listinfo/python-list -- Joel Goldstick http://joelgoldstick.com
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fileno() not supported in Python 3.1 satishmlmlml@gmail.com - 2014-11-13 15:48 -0800
Re: fileno() not supported in Python 3.1 Ben Finney <ben+python@benfinney.id.au> - 2014-11-14 10:57 +1100
Re: fileno() not supported in Python 3.1 satishmlmlml@gmail.com - 2014-11-13 16:08 -0800
Re: fileno() not supported in Python 3.1 Ben Finney <ben+python@benfinney.id.au> - 2014-11-14 13:52 +1100
Re: fileno() not supported in Python 3.1 Cameron Simpson <cs@zip.com.au> - 2014-11-14 18:36 +1100
Re: fileno() not supported in Python 3.1 Nobody <nobody@nowhere.invalid> - 2014-11-14 13:59 +0000
Re: fileno() not supported in Python 3.1 Joel Goldstick <joel.goldstick@gmail.com> - 2014-11-14 09:09 -0500
Re: fileno() not supported in Python 3.1 Ian Kelly <ian.g.kelly@gmail.com> - 2014-11-14 09:51 -0700
Re: fileno() not supported in Python 3.1 Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-11-15 22:23 +1100
Re: fileno() not supported in Python 3.1 Dan Stromberg <drsalists@gmail.com> - 2014-11-15 21:25 -0800
Re: fileno() not supported in Python 3.1 Chris Angelico <rosuav@gmail.com> - 2014-11-16 16:29 +1100
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