Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.freenet.ag!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!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: UNSURE 0.426 X-Spam-Level: **** X-Spam-Evidence: '*H*': 0.36; '*S*': 0.21; '>>>': 0.18; 'to:name :python-list@python.org': 0.20; 'import': 0.21; '>>>': 0.22; 'to:addr:python-list': 0.33; 'reply-to:addr:yahoo.com': 0.34; 'charset:us-ascii': 0.36; 'why': 0.37; 'skip:o 20': 0.38; 'to:addr:python.org': 0.39; 'received:98.139.212': 0.65; 'received:bullet.mail.bf1.yahoo.com': 0.65; 'subject: ': 0.66; 'header:Reply-To:1': 0.68; 'received:182': 0.91; 'received:98.139.213': 0.91 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 967902.37937.bm@omp1040.mail.bf1.yahoo.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1360647500; bh=HAqam5+QP96kxdWUw30F+sm/Z+VSzhMT8EXsBWh/9uQ=; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:Message-ID:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=2IVz24pemhuNzfBYAJnM2GpScd1VUBRfWaFbY4NT5u7CADP6+hzmSNvwX+90HYzSiO/SPf0Gu8kUEHvi6YgbarvMXTRAhnZPCrUMF//rDFqry7pcvNHRZWvFONO3+cLy0+jpbGtSEEB/U0T7oMQq0TBUrvDzpAU5svJKTwyyimA= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:Message-ID:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=BRjssCjRSZ86kfH2nVvhHpt7Vhx0xND1bgdha6XGGB0Pwvfo7A05RJvbMieTwRwVfSs3Yd2hagp9gpXO0j6gc47MltRD/sIKZpOuUq0nhwP/gYUZwMi3QzlGSR2POwcj0aCD9S6dGBMvh1G6Pfkvrpp6Zg2zGPRM8wh6tZ4OebI=; X-YMail-OSG: J2KvZO8VM1l6OQqZpou48X1rmKP2.mzXvgxICnsCjO7UhJs qo05L9IxQznbemK3OlCA2PedHClLF9IjbziOzwZVq95xEAjaYypOsGHWdyqX tHIlpI.4iFL5ThkA5cqsUtv6rP.bB4aT7saYdIgZhy9z_Q89R19Wf2ebhOI. fn1.CRqrFHt0fNgrkNLX5hBtlZaVOkWDUZtkTwlPowtMaJ2DogXIn6_62j4f q6ZjdDDGiBb0OgBGGL8L8aJ4fXH4Hr65k1lNOWnawzzyM4Ixmej8UDA68RB5 Veq72CuZcEbw99kum1vqFYgfS.kZQ9_z7iC2LUfh9sF1OISVMQOByVOVryia R2UlhRMfv8Eb9qWddDcKeO4EjBD8uP1SCKlv2.esInmycSbJZ8qSkEIydqMY QpYAV8qYAMflD_olJ53_irxWzhTpxAaR10b76XanBogiwKL0LliXkbaIep33 Eg52kT4NssfvzffYF X-Rocket-MIMEInfo: 001.001, Pj4.IGltcG9ydCBvcwo.Pj4gb3Muc3lzdGVtKCJpPTMiKQowCj4.PiBvcy5zeXN0ZW0oImVjaG8gJGkiKQoKMAoKd2h5IGkgY2FuIG5vdCBnZXQgdGhlIHZhbHVlIG9mIGk_ATABAQEB X-Mailer: YahooMailWebService/0.8.133.508 Date: Mon, 11 Feb 2013 21:38:20 -0800 (PST) From: Bqsj Sjbq Subject: call from pthon to shell To: "Python-list@python.org" MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-1725615817-2022096481-1360647500=:45284" X-Mailman-Approved-At: Tue, 12 Feb 2013 08:58:40 +0100 X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: Bqsj Sjbq 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: 16 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1360655922 news.xs4all.nl 6859 [2001:888:2000:d::a6]:57348 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:38734 ---1725615817-2022096481-1360647500=:45284 Content-Type: text/plain; charset=us-ascii >>> import os >>> os.system("i=3") 0 >>> os.system("echo $i") 0 why i can not get the value of i? ---1725615817-2022096481-1360647500=:45284 Content-Type: text/html; charset=us-ascii
>>> import os
>>> os.system("i=3")
0
>>> os.system("echo $i")

0

why i can not get the value of i?
---1725615817-2022096481-1360647500=:45284--