Path: csiph.com!newsfeed.hal-mli.net!feeder3.hal-mli.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!feeder.erje.net!eu.feeder.erje.net!news.stack.nl!aioe.org!.POSTED!not-for-mail From: Mark H Harris Newsgroups: comp.lang.python Subject: Re: Howto flaten a list of lists was (Explanation of this Python language feature) Date: Fri, 28 Mar 2014 17:23:51 -0500 Organization: Aioe.org NNTP Server Lines: 29 Message-ID: <5335F677.20605@gmail.com> References: NNTP-Posting-Host: +K+LVGHWjDoy/+unkid0vA.user.speranza.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Complaints-To: abuse@aioe.org User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 X-Notice: Filtered by postfilter v. 0.8.2 Xref: csiph.com comp.lang.python:69291 On 3/28/14 5:12 PM, Mark Lawrence wrote: >> >> No. This has to be a better way to flatten lists: >> >> >>> from functools import reduce >> >> >>> import operator as λ >> >> >>> reduce(λ.add, l) >> [1, 2, 3, 4, 5, 6, 7, 8, 9] >> > > Why reinvent yet another way of flattening lists, particulary one that > doesn't use the far more sensible:- { particularly } > > from operator import add > > As for the stupid symbol that you're using, real programmers don't give > a damn about such things, they prefer writing plain, simple, boring code > that is easy to read. :-)) as RMS would say, "playful hacking, dude, playful hacking..."