Path: csiph.com!usenet.pasdenom.info!aioe.org!news.stack.nl!newsfeed.xs4all.nl!newsfeed3.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path: <python-python-list@m.gmane.org>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.055
X-Spam-Evidence: '*H*': 0.89; '*S*': 0.00; 'expected.': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'runs': 0.10; "wouldn't": 0.14; 'finney': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'subject:Line': 0.16; 'subject:Reading': 0.16; 'tty': 0.16; 'input': 0.22; 'header:User- Agent:1': 0.23; '(by': 0.24; 'instead.': 0.24; 'file.': 0.24; 'this:': 0.26; 'header:X-Complaints-To:1': 0.27; 'tim': 0.29; 'writes:': 0.31; 'file': 0.32; 'run': 0.32; 'usual': 0.35; 'there': 0.35; 'so,': 0.37; 'ben': 0.38; 'to:addr:python-list': 0.38; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'how': 0.40; 'read': 0.60; 'entire': 0.61; 'first': 0.61; "you've": 0.63; 'skip:n 10': 0.64; 'more': 0.64; 'different': 0.65; 'skip:\xe2 10': 0.65; '8bit%:21': 0.69; 'odds': 0.84; 'religion': 0.84; 'subject:After': 0.84; 'why?': 0.91; 'subject:From': 0.97
X-Injected-Via-Gmane: http://gmane.org/
To: python-list@python.org
From: Ben Finney <ben+python@benfinney.id.au>
Subject: Re: Reading From stdin After Command Line Redirection
Date: Thu, 24 Oct 2013 07:46:43 +1100
References: <7cdlja-j3j2.ln1@ozzie.tundraware.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
X-Gmane-NNTP-Posting-Host: rasputin.madmonks.org
X-Public-Key-ID: 0xAC128405
X-Public-Key-Fingerprint: 517C F14B B2F3 98B0 CB35  4855 B8B2 4C06 AC12 8405
X-Public-Key-URL: http://www.benfinney.id.au/contact/bfinney-gpg.asc
X-Post-From: Ben Finney <bignose+hates-spam@benfinney.id.au>
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.4 (gnu/linux)
Cancel-Lock: sha1:CDU+D9gJb68kj8j2ptCTPPJyh/Y=
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <http://mail.python.org/pipermail/python-list/>
List-Post: <mailto:python-list@python.org>
List-Help: <mailto:python-list-request@python.org?subject=help>
List-Subscribe: <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.1427.1382561215.18130.python-list@python.org>
Lines: 34
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1382561215 news.xs4all.nl 15947 [2001:888:2000:d::a6]:57301
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:57385

Tim Daneliuk <tundra@tundraware.com> writes:

> I have a program that runs like this:
>
>   foo.py <inputfile

That's one way to run it. If the user chooses to run it that way, they
have chosen deliberately to run the program non-interactively.

> I want to reconnect stdin to the tty as usual after 'inputfile'
> has been read so that things like raw_input and getpass
> will work as expected.

Why? That's at odds with how the user has already chosen to run the
program. If they wanted to run the program interactively, they wouldn't
have chosen to redirect standard input.

> So, after I do .... = sys.stdin.readlines(), how to I reopen
> stdin in its nonredirected mode?

There would be no point; standard input was never attached to the
console in the first place, it was attached (by the person who chose the
above invocation) to a different file instead. You've already read the
entire file.

Can you speak more about how you intend your program to be used? The
above request is incoherent, and I suspect you've made a design mistake.

-- 
 \       “Philosophy is questions that may never be answered. Religion |
  `\              is answers that may never be questioned.” —anonymous |
_o__)                                                                  |
Ben Finney