Path: csiph.com!usenet.pasdenom.info!aioe.org!news.stack.nl!newsfeed.xs4all.nl!newsfeed4.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: UNSURE 0.263 X-Spam-Level: ** X-Spam-Evidence: '*H*': 0.50; '*S*': 0.03; 'parameter': 0.09; 'subject:How': 0.10; 'def': 0.12; '@property': 0.16; 'compute': 0.16; 'plan.': 0.16; 'subject:default': 0.16; 'code:': 0.26; 'header:In-Reply-To:1': 0.27; 'ball': 0.31; 'subject:that': 0.31; 'class': 0.32; '-----': 0.33; 'skip:_ 10': 0.34; 'subject:the': 0.34; 'could': 0.34; 'mass': 0.36; 'subject:one': 0.36; 'thank': 0.38; 'to:addr:python-list': 0.38; 'fact': 0.38; 'moving': 0.39; 'to:addr:python.org': 0.39; 'remove': 0.60; 'most': 0.60; 'you.': 0.62; "you'll": 0.62; 'information': 0.63; 'received:194': 0.64; 'notice:': 0.67; 'circle': 0.68; 'person,': 0.68; 'privileged.': 0.69; 'disclose': 0.74; 'density': 0.84; 'medium.': 0.91; 'skip:4 20': 0.91 X-IronPort-AV: E=Sophos;i="5.07,556,1413237600"; d="scan'208";a="3718111" Date: Thu, 11 Dec 2014 11:02:45 +0100 (CET) From: Jean-Michel Pichavant To: python-list@python.org In-Reply-To: <5488b874$0$2890$426a34cc@news.free.fr> Subject: Re: How to detect that a function argument is the default one MIME-Version: 1.0 X-Mailer: Zimbra 7.2.7_GA_2942 (ZimbraWebClient - GC37 (Linux)/7.2.7_GA_2942) Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 X-Mailman-Approved-At: Thu, 11 Dec 2014 11:13:45 +0100 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: 19 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1418292827 news.xs4all.nl 2882 [2001:888:2000:d::a6]:33141 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:82356 LS0tLS0gT3JpZ2luYWwgTWVzc2FnZSAtLS0tLQo+IEZyb206ICJhc3QiIDxub21haWxAaW52YWxp ZC5jb20+Cgo+ID4KPiA+PiBOb3RlIDogd2hhdCBpcyB0aGUgbWFzcyBvZiBhIGNpcmNsZSA/Cj4g Pgo+IAo+IEluIGZhY3QgaXQncyBhIGJhbGwgbW92aW5nIGluIGEgcGxhbi4KPiBJIHdpbGwgY2hh bmdlIHRoYXQgbmFtZS4KCkkgd291bGQgYWR2aXNlIHRvIHJlbW92ZSB0aGUgdGhlIG1hc3MgcGFy YW1ldGVyIG9mIHlvdXIgU3BoZXJlIGluaXRpYWxpemF0aW9uLiBJdCBjb3VsZCBiZSBpbmNvbnNp c3RlbnQgd2l0aCB0aGUgcmFkaXVzLgpUbyBjb21wdXRlIHRoZSBtYXNzIHlvdSB3b3VsZCBuZWVk IHRoZSByYWRpdXMgYW5kIHRoZSAgdm9sdW1ldHJpYyBtYXNzIGRlbnNpdHkuCgpwc2V1ZG8gY29k ZToKCmNsYXNzIFNwaGVyZShvYmplY3QpOgogIGRlZiBfX2luaXRfXyhzZWxmLCBjZW50ZXIsIHJh ZGl1cywgZGVuc2l0eSk6CgogIEBwcm9wZXJ0eQogIGRlZiB2b2x1bWUoc2VsZik6CiAgICByZXR1 cm4gNC8zLipwaSpzZWxmLnJhZGl1c14zCgogIEBwcm9wZXJ0eQogIGRlZiBtYXNzKHNlbGYpOgog ICAgcmV0dXJuIHNlbGYudm9sdW1lKnNlbGYuZGVuc2l0eQoKWW91J2xsIGZpbmQgbm8gdGhlIG5l dCB0aGUgZGVuc2l0eSBmb3IgbW9zdCBvZiB0aGUgbWF0ZXJpYWxzLgoKSk0KCgotLSBJTVBPUlRB TlQgTk9USUNFOiAKClRoZSBjb250ZW50cyBvZiB0aGlzIGVtYWlsIGFuZCBhbnkgYXR0YWNobWVu dHMgYXJlIGNvbmZpZGVudGlhbCBhbmQgbWF5IGFsc28gYmUgcHJpdmlsZWdlZC4gSWYgeW91IGFy ZSBub3QgdGhlIGludGVuZGVkIHJlY2lwaWVudCwgcGxlYXNlIG5vdGlmeSB0aGUgc2VuZGVyIGlt bWVkaWF0ZWx5IGFuZCBkbyBub3QgZGlzY2xvc2UgdGhlIGNvbnRlbnRzIHRvIGFueSBvdGhlciBw ZXJzb24sIHVzZSBpdCBmb3IgYW55IHB1cnBvc2UsIG9yIHN0b3JlIG9yIGNvcHkgdGhlIGluZm9y bWF0aW9uIGluIGFueSBtZWRpdW0uIFRoYW5rIHlvdS4K