Path: csiph.com!goblin2!goblin1!goblin.stu.neva.ru!uio.no!news.tele.dk!news.tele.dk!small.news.tele.dk!newsgate.cistron.nl!newsgate.news.xs4all.nl!nzpost1.xs4all.net!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; '(1,': 0.09; 'received:internal': 0.09; 'tuple': 0.09; 'thread': 0.10; 'folks': 0.15; 'thu,': 0.15; '(2,': 0.16; '2)]': 0.16; 'assignment.': 0.16; 'lhs': 0.16; 'message-id:@webmail.messagingengine.com': 0.16; 'received:10.202': 0.16; 'received:10.202.2': 0.16; 'received:10.202.2.212': 0.16; 'received:66.111': 0.16; 'received:66.111.4': 0.16; 'received:messagingengine.com': 0.16; 'rhs': 0.16; 'weird.': 0.16; 'wrote:': 0.16; 'affected': 0.22; 'sep': 0.22; 'seems': 0.23; "haven't": 0.24; 'header:In-Reply- To:1': 0.24; 'least': 0.27; 'code': 0.30; 'post': 0.31; 'another': 0.32; 'true.': 0.33; 'should': 0.36; 'to:addr:python-list': 0.36; 'subject:: ': 0.37; 'received:10': 0.37; 'really': 0.37; 'received:66': 0.38; 'to:addr:python.org': 0.40; 'some': 0.40; 'from:no real name:2**0': 0.60; 'behavior': 0.61; 'header:Message- Id:1': 0.61; 'back': 0.62; 'fire': 0.63; 'different': 0.63; 'sample': 0.63 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=fastmail.us; h= content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-sasl-enc :x-sasl-enc; s=mesmtp; bh=xrbxUQGcB3x0w9Jx0XRg4GVNEOM=; b=qMfy3J C1fjSd6JDabGR/aFEBJOB/JUc4D52yg8rIh5pfJvr/EIyT3PWc16j29MURzx1rTK hIphOjlI9pCQTMBjlPbKHCCv4XtGu512iXIEmylqhIU2o+XcNIDr+fP1S3/hgxfd TJvI2Vt7ATZVw278wCc6PHMBuCP9WS/ibmq08= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-sasl-enc:x-sasl-enc; s=smtpout; bh=xrbxUQGcB3x0w9J x0XRg4GVNEOM=; b=V5YmkpOn6qEDY06zl3lRSNPlJWSlpFO57kjwcPMCaRP0mLp TXNTlgPg8Jr+pd2LURDz/Xbw7eXsafGam9wEESKgZevJd+n/QG7NiDAR+5qAIA/H MZtljLg/HswC3P8sQ7vS0vlhFKe9JsD7qmb7J7bBh0QcsHaT4Fgj/RErdXws= X-Sasl-Enc: 9N2Ha091jzFYmG5POV8rhwemH4BQSSu/iHz8Rx6LCI3Q 1441337800 From: random832@fastmail.us To: python-list@python.org MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain X-Mailer: MessagingEngine.com Webmail Interface - ajax-4500bf93 In-Reply-To: <55E8D6D4.20209@mail.de> References: <55E6C904.3020602@rece.vub.ac.be> <55E73159.4050508@mail.de> <1441243045.413788.373350650.5DF79DE2@webmail.messagingengine.com> <55E8D6D4.20209@mail.de> Subject: Re: packing unpacking depends on order. Date: Thu, 03 Sep 2015 23:36:40 -0400 X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.20+ 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: 12 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1441337810 news.xs4all.nl 23736 [2001:888:2000:d::a6]:51461 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:96006 On Thu, Sep 3, 2015, at 19:25, Sven R. Kunze wrote: > You mentioned side-effects. That is true. Right now, however, the > side-effects even fire back to the RHS of the assignment. That is really > weird. To me, and as it seems to some other folks here, the RHS should > be at least independent of the LHS and vice versa. You haven't demonstrated that the RHS is affected by anything. The sample code in the original post of this thread behaves identically if the RHS is a simple tuple of (2, 1) [or (1, 2)] respectively. If you have another sample that shows different behavior please post it.