220 37300 article Path: news.gmane.org!.POSTED!not-for-mail From: Larry Evans Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: More compact #include statement. 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Original-Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1ev4UV-00054N-0h for std-proposals@isocpp.org; Sun, 11 Mar 2018 18:10:35 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 68 Original-X-Complaints-To: usenet@blaine.gmane.org In-Reply-To: Content-Language: en-US X-Original-Sender: cppljevans@suddenlink.net X-Original-Authentication-Results: mx.google.com; spf=neutral (google.com: 195.159.176.226 is neither permitted nor denied by best guess record for domain of gclcip-std-proposals@m.gmane.org) smtp.mailfrom=gclcip-std-proposals@m.gmane.org Precedence: list Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org List-ID: X-Spam-Checked-In-Group: std-proposals@isocpp.org X-Google-Group-Id: 399137483710 List-Post: , List-Help: , List-Archive: List-Subscribe: , List-Unsubscribe: , Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:37300 Archived-At: On 03/11/2018 11:40 AM, j c wrote: > On Sunday, March 11, 2018, Todd Fleming wrote: > >> >> On Sunday, March 11, 2018 at 8:52:34 AM UTC-4, Larry Evans wrote: >>> >>> On 03/11/2018 06:24 AM, Barry Revzin wrote: >>>> Python allows you to have multiple imports on a single line, as you're >>> proposing here. >>>> >>>> Python's style guide, PEP-8, says not to do it and to use one import >>> per line: https://www.python.org/dev/peps/pep-0008/#imports >>>> >>> Doesn't this style of using one import per line violate the DRY >>> principle: >>> >>> https://en.wikipedia.org/wiki/Don%27t_repeat_yourself >>> >>> For example: >>> >>> import os >>> import sys >>> >> >> If that's DRY, then DRY is unusable: >> >> f(a,b); >> ... >> f(c,d); // oops.We should never call f() anywhere else because DRY. >> >> > Hear hear > OK, to be more explicit: There's no *semantic* difference between: import os import sys and: import os,sys but there *is* a semantic difference between: f(a); ... f(b); and: f(a),(b); ... which isn't even legal. Thus: f(a); ... f(b); is *not* violating DRY. -- You received this message because you are subscribed to the Google Groups "ISO C++ Standard - Future Proposals" group. To unsubscribe from this group and stop receiving emails from it, send an email to std-proposals+unsubscribe@isocpp.org. To post to this group, send email to std-proposals@isocpp.org. To view this discussion on the web visit https://groups.google.com/a/isocpp.org/d/msgid/std-proposals/p83nu3%24ifd%241%40blaine.gmane.org. .