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Groups > comp.lang.python > #79795
| From | Wolfgang Maier <wolfgang.maier@biologie.uni-freiburg.de> |
|---|---|
| Subject | Re: A bug? |
| Date | 2014-10-27 17:17 +0100 |
| References | <f491d969-7405-4017-b9c4-e1cb52a70280@googlegroups.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.15238.1414426664.18130.python-list@python.org> (permalink) |
On 10/27/2014 05:01 PM, umatrp@gmail.com wrote: > I use python 3.4.0 version. In the course of developing / running a python program, I have encountered a problem. I have reproduced below a simple program to bring it out. > > >>>> d = [[0]*3]*4 >>>> dd = [1,2,3,4,5,6,7,8,9,10,11,12] >>>> for i in range(4): > ... for j in range(3): d[i][j] = dd[i*3+j] > ... >>>> d > [[10, 11, 12], [10, 11, 12], [10, 11, 12], [10, 11, 12]] >>>> > d is not transferred to dd as expected? > Of course I can use 'append' & do my job (less elegantly though). > See https://docs.python.org/3/library/stdtypes.html?highlight=list#common-sequence-operations under Note 2 . Also asked and answered multiple times at stackoverflow, e.g., http://stackoverflow.com/questions/6688223/
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A bug? "umatrp@gmail.com" <trsexgl@gmail.com> - 2014-10-27 09:01 -0700
Re: A bug? Wolfgang Maier <wolfgang.maier@biologie.uni-freiburg.de> - 2014-10-27 17:17 +0100
Re: A bug? Ian Kelly <ian.g.kelly@gmail.com> - 2014-10-27 10:26 -0600
Re: A bug? Denis McMahon <denismfmcmahon@gmail.com> - 2014-10-28 00:36 +0000
Re: A bug? Rustom Mody <rustompmody@gmail.com> - 2014-10-27 18:12 -0700
Re: A bug? Chris Angelico <rosuav@gmail.com> - 2014-10-28 12:25 +1100
Re: A bug? Rustom Mody <rustompmody@gmail.com> - 2014-10-27 19:13 -0700
Re: A bug? Joshua Landau <joshua@landau.ws> - 2014-10-28 01:29 +0000
Re: A bug? Denis McMahon <denismfmcmahon@gmail.com> - 2014-10-29 02:17 +0000
What for -- for? (was A bug?) Rustom Mody <rustompmody@gmail.com> - 2014-10-28 20:22 -0700
Re: What for -- for? (was A bug?) Zachary Ware <zachary.ware+pylist@gmail.com> - 2014-10-28 23:16 -0500
Re: What for -- for? (was A bug?) Zachary Ware <zachary.ware+pylist@gmail.com> - 2014-10-28 23:23 -0500
Re: What for -- for? (was A bug?) Rustom Mody <rustompmody@gmail.com> - 2014-10-28 21:40 -0700
Re: What for -- for? (was A bug?) Zachary Ware <zachary.ware+pylist@gmail.com> - 2014-10-28 23:59 -0500
Re: What for -- for? (was A bug?) Rustom Mody <rustompmody@gmail.com> - 2014-10-28 22:15 -0700
Re: What for -- for? (was A bug?) Zachary Ware <zachary.ware+pylist@gmail.com> - 2014-10-29 00:39 -0500
Re: What for -- for? (was A bug?) Rustom Mody <rustompmody@gmail.com> - 2014-10-28 23:11 -0700
Re: What for -- for? (was A bug?) Zachary Ware <zachary.ware+pylist@gmail.com> - 2014-10-29 01:18 -0500
Finding way around ABCs (was What for -- for? (was A bug?)) Rustom Mody <rustompmody@gmail.com> - 2014-10-30 10:01 -0700
Re: Finding way around ABCs (was What for -- for? (was A bug?)) Ian Kelly <ian.g.kelly@gmail.com> - 2014-10-30 11:09 -0600
Re: Finding way around ABCs (was What for -- for? (was A bug?)) Rustom Mody <rustompmody@gmail.com> - 2014-10-30 10:16 -0700
Re: Finding way around ABCs (was What for -- for? (was A bug?)) Ian Kelly <ian.g.kelly@gmail.com> - 2014-10-30 11:11 -0600
Re: What for -- for? (was A bug?) Ben Finney <ben+python@benfinney.id.au> - 2014-10-29 16:27 +1100
Re: What for -- for? (was A bug?) Zachary Ware <zachary.ware+pylist@gmail.com> - 2014-10-29 00:42 -0500
Re: What for -- for? (was A bug?) Rustom Mody <rustompmody@gmail.com> - 2014-10-28 22:57 -0700
Re: What for -- for? (was A bug?) Ben Finney <ben+python@benfinney.id.au> - 2014-10-29 17:02 +1100
Re: What for -- for? (was A bug?) Joshua Landau <joshua@landau.ws> - 2014-10-30 17:21 +0000
Re: What for -- for? (was A bug?) Rustom Mody <rustompmody@gmail.com> - 2014-10-30 10:41 -0700
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