Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!news.mixmin.net!feeds.phibee-telecom.net!newsfeed.xs4all.nl!newsfeed2.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.003 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'operator': 0.03; 'subject:skip:s 10': 0.07; 'feature,': 0.09; 'msg': 0.09; 'parameter': 0.09; 'spaces': 0.09; 'subject:question': 0.10; 'cc:addr:python-list': 0.11; '23,': 0.16; 'accepts': 0.16; 'argument,': 0.16; 'slash': 0.16; 'stdout': 0.16; 'symbols': 0.16; 'to:addr:web.de': 0.16; 'sender:addr:gmail.com': 0.17; 'wrote:': 0.18; 'trying': 0.19; '<': 0.19; 'alex': 0.19; 'thu,': 0.19; 'import': 0.22; 'shell': 0.22; 'cc:addr:python.org': 0.22; 'print': 0.22; 'question': 0.24; 'cc:2**0': 0.24; 'cc:no real name:2**0': 0.24; '>': 0.26; 'header:In-Reply-To:1': 0.27; 'am,': 0.29; 'message-id:@mail.gmail.com': 0.30; "i'm": 0.30; 'url:mailman': 0.30; 'that.': 0.31; 'parameters.': 0.31; 'file': 0.32; 'url:python': 0.33; 'problem': 0.35; 'but': 0.35; 'received:google.com': 0.35; 'url:listinfo': 0.36; 'method': 0.36; 'url:org': 0.36; 'skip:& 10': 0.38; 'thank': 0.38; 'skip:& 20': 0.39; 'url:mail': 0.40; 'how': 0.40; 'new': 0.61; 'save': 0.62; 'name': 0.63; 'different': 0.65; 'p.s.': 0.66; 'much,': 0.84; 'otten': 0.84; 'works!': 0.91; '2013': 0.98 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; bh=YvHTUuti/mYL80qM0gSR30sVwdU+h41jOt21gGX9pQk=; b=bUDmd/kvpiFge+TXOJnHWPi9rpmHDF32U3Lv1bWEsn3Ma3mCSTpBiMiXDPCQ9wob2D Az8Pe8SgBN3kTMp+IvO8+oqwsGHwsEmFbhG4u/BCBk3k0ZeMZ4NyjqBrKFUBggkDLS3X 3F9bJWin3hpjcoxaco8L+EIJKrZpvo2oKEo3/DgvZQN2Eyd2dEQnzz7dwaNpIvGIyHdw VXlmI/m5XTVPI/4QAV0pmCL5ij3BjR0/67t65yns1vT+VRUFlFR972+qfW6mcYv4Qcwd cESCcQ/2n4elJWGkgfOq90+Db1526INi/WsyKnQGqEpDnds2/m9dtjuOiCeAMR2hJAo8 FgBA== MIME-Version: 1.0 X-Received: by 10.112.169.37 with SMTP id ab5mr5810263lbc.25.1369294848666; Thu, 23 May 2013 00:40:48 -0700 (PDT) Sender: posix.ru@gmail.com In-Reply-To: References: Date: Thu, 23 May 2013 09:40:48 +0200 X-Google-Sender-Auth: 8KrMrcIghVlg_9-uQ2uqlhDeN-A Subject: Re: newbie question about subprocess.Popen() arguments From: Alex Naumov To: Peter Otten <__peter__@web.de> Content-Type: multipart/alternative; boundary=001a11c34b4a0c311204dd5dcd4a Cc: python-list@python.org X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 88 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1369294855 news.xs4all.nl 15872 [2001:888:2000:d::a6]:41514 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:45785 --001a11c34b4a0c311204dd5dcd4a Content-Type: text/plain; charset=UTF-8 Thank you very much, Peter! It works! On Thu, May 23, 2013 at 9:32 AM, Peter Otten <__peter__@web.de> wrote: > Alex Naumov wrote: > > > I'm trying to call new process with some parameters. The problem is that > > the last parameter is a "string" that has a lot of spaces and different > > symbols like slash and so on. I can save it in file and use name of this > > file as parameter, but my question is: how to make it without > additional > > saving? > > > > import subprocess as sp > > > > rc = sp.Popen(["prog", "--options", "<", msg], stdin=sp.PIPE, > > stdout=sp.PIPE) > > stdout = rc.communicate()[0] > > print stdout > > > p.s. > > type(msg) => > > The < operator is a shell feature, not an argument, and msg is intended to > be send to prog's stdin. The communicate() method accepts a parameter for > that. So: > > rc = sp.Popen(["prog", "--options"], stdin=sp.PIPE, stdout=sp.PIPE) > stdout = rc.communicate(msg)[0] > > -- > http://mail.python.org/mailman/listinfo/python-list > --001a11c34b4a0c311204dd5dcd4a Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Thank you very much, Peter!
It works!


On Thu, Ma= y 23, 2013 at 9:32 AM, Peter Otten <__peter__@web.de> wrote:<= br>
Alex Naumov wrote:

> I'm trying to call new process with some parameters. The problem i= s that
> the last parameter is a "string" that has a lot of spaces an= d different
> symbols like slash and so on. I can save it in file and use name of th= is
> file as parameter, but my question is: how to make it without =C2=A0 a= dditional
> saving?
>
> import subprocess as sp
>
> rc =3D sp.Popen(["prog", "--options", "<&q= uot;, msg], stdin=3Dsp.PIPE,
> stdout=3Dsp.PIPE)
> stdout =3D rc.communicate()[0]
> print stdout

> p.s.
> type(msg) =3D> <type 'str'>

The < operator is a shell feature, not an argument, and msg is int= ended to
be send to prog's stdin. The communicate() method accepts a parameter f= or
that. So:

rc =3D sp.Popen(["prog", "--options"], stdin=3Dsp.PIPE,= stdout=3Dsp.PIPE)
stdout =3D rc.communicate(msg)[0]

--
http://mail.python.org/mailman/listinfo/python-list

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