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[Python-ideas] list / array comprehensions extension
Michael Foordfuzzyman at gmail.com
Thu Dec 15 22:53:56 CET 2011
On 15 December 2011 17:41, Alexander Heger <python at 2sn.net> wrote:> Dear Oleg,>> OK, these work for the examples I listed, I had not tried that. Thanks!>> I still think the element extraction would be nice, though.> what does not work your way is> x = [1,2,3]> y = (0,) + x>> but> y = (0,*x)> could do ... ?>In fact there's already an issue for this, with patch:http://bugs.python.org/issue2292Actually it goes a lot further than just the syntax you suggest... Itextends tuple unpacking into a few more places as well.All the best,Michael Foord>> -Alexander>>> On 12/15/2011 11:33 AM, Oleg Broytman wrote:>>> On Thu, Dec 15, 2011 at 10:26:50AM -0600, Alexander Heger wrote:>>>>> x = [1,2,3]>>> y = [0,*x]>>> to obtain [0,1,2,3]>>>>>>> y = [0] + x>>>> or similar for lists>>> x = (1,2,3)>>> y = (0,*x)>>> to obtain (0,1,2,3)>>>>>>> y = (0,) + x>>>> Oleg.>>> ______________________________**_________________> Python-ideas mailing list>Python-ideas at python.org>http://mail.python.org/**mailman/listinfo/python-ideas<http://mail.python.org/mailman/listinfo/python-ideas>>--http://www.voidspace.org.uk/May you do good and not evilMay you find forgiveness for yourself and forgive othersMay you share freely, never taking more than you give.-- the sqlite blessinghttp://www.sqlite.org/different.html-------------- next part --------------An HTML attachment was scrubbed...URL: <http://mail.python.org/pipermail/python-ideas/attachments/20111215/db677c56/attachment.html>
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