Re: indexed assignment in list

On Wed, Jul 11, 2018 at 10:55 AM Peter Otten <__pete...@web.de> wrote: As to why you'd expect that one I've no idea my mistake -- Abdur-Rahmaan Janhangeer https://github.com/abdur-rahmaanj Mauritius -- https://mail.python.org/mailman/listinfo/python-list

Re: indexed assignment in list

Peter Otten wrote: > a = [[1]] * 7 > > creates a list containing seven references to the same inner list [1]. I. e. it is roughly equivalent to b = [1] a = [b, b, b, b, b, b, b] -- https://mail.python.org/mailman/listinfo/python-list

Re: indexed assignment in list

Abdur-Rahmaan Janhangeer wrote: > saw this snippet on the internet : why assigning by index propagates it > all? It doesn't. > a = [[1]] * 7 a > [[1], [1], [1], [1], [1], [1], [1]] > >>> a[0][0] = 2 a > [[2], [2], [2], [2], [2], [2], [2]] > > why not > > [[1], [2], [2], [2], [

indexed assignment in list

saw this snippet on the internet : why assigning by index propagates it all? >>> a = [[1]] * 7 >>> a [[1], [1], [1], [1], [1], [1], [1]] >>> a[0][0] = 2 >>> a [[2], [2], [2], [2], [2], [2], [2]] why not [[1], [2], [2], [2], [2], [2], [2]] ? thank you ! -- Abdur-Rahmaan Janhangeer https://git