Path: csiph.com!eternal-september.org!feeder.eternal-september.org!border1.nntp.ams1.giganews.com!nntp.giganews.com!newsfeed.xs4all.nl!newsfeed7.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 0.007 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'extends': 0.07; 'exist.': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'instead.': 0.15; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'subject:reference': 0.16; 'subject:versus': 0.16; 'to]': 0.16; 'wrote:': 0.16; 'string': 0.17; 'sep': 0.22; 'attach': 0.23; 'references': 0.23; 'mon,': 0.24; 'header:User-Agent:1': 0.26; "doesn't": 0.26; 'header:X-Complaints-To:1': 0.26; '14,': 0.27; 'objects': 0.29; '(we': 0.30; 'problem': 0.33; 'message- id:@gmail.com': 0.34; 'could': 0.35; 'list,': 0.36; 'instead': 0.36; 'there': 0.36; 'subject:" ': 0.36; 'to:addr:python-list': 0.36; 'subject:: ': 0.37; 'received:org': 0.37; 'anything': 0.38; 'mean': 0.38; 'represent': 0.38; 'does': 0.39; 'easily': 0.39; 'to:addr:python.org': 0.40; 'different': 0.63; 'within': 0.64; 'places': 0.64; 'received:89': 0.80; 'from.': 0.93 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Akira Li <4kir4.1i@gmail.com> Subject: Re: Terminology: "reference" versus "pointer" Date: Mon, 14 Sep 2015 21:17:56 +0300 References: <85io7g6xy4.fsf@benfinney.id.au> <85egi46wng.fsf@benfinney.id.au> <1a1a1f6a-27ce-4c1b-807a-43eabaa04abb@googlegroups.com> <04ca9d7c-d02b-4329-bd94-4d18d86b3edf@googlegroups.com> <87egi375wb.fsf@gmail.com> <87wpvu5h7f.fsf@gmail.com> <87pp1l6h9a.fsf@gmail.com> <1442187517.2372486.382584889.2ED1B071@webmail.messagingengine.com> <874mix5a63.fsf@gmail.com> <1442243411.198925.383193481.6164EF4E@webmail.messagingengine.com> <87vbbc51zh.fsf@gmail.com> <1442253630.238013.383375545.5EF03093@webmail.messagingengine.com> Mime-Version: 1.0 Content-Type: text/plain X-Gmane-NNTP-Posting-Host: 89.169.229.68 User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux) Cancel-Lock: sha1:f7QBXVO11VP/tPtvDT21cS0HpVw= 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: 24 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1442254766 news.xs4all.nl 23800 [2001:888:2000:d::a6]:35834 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:96586 Random832 writes: > On Mon, Sep 14, 2015, at 13:45, Akira Li wrote: >> [box + arrow pointing to] + object == parcel tag + object > > The problem is that if there are multiple namespaces, or if you've also > got to include references from within other objects such as list, then > you've got to write all that somehow on the parcel tag, instead of just > having different places the arrows can start from. > > The box and arrow model easily extends to this, and the fact that no-one > can make up their mind on what to *call* the thing the arrows represent > doesn't mean they don't exist. box has arrow, parcel tag has string/thread. We could attach an arrow instead of a string to the parcel tag. The box does not contain anything inside (we can attach the arrow outside the box -- nothing changes). If the box does not contain anything then we could use a parcel tag instead.