Sorry, that obviously should have been: d = [[0] * 5 for in range(10)]
So it's not quite exactly the same as your example. On 30 March 2017 at 11:24, Allan Clark <allan.cl...@gmail.com> wrote: > If there were to be special syntax for this case, I'd just allow an > empty pattern, such as: > > d = [[0] * 5 for in 10] > > This is exactly the same as your 'repeat_for' except that it is spelt > 'for in', which means there are no new keywords. It would also be > allowed in for-loops in the same way as your example. I believe this > would even be relatively simple to implement (but don't know). > But I'm afraid, I'd be -1 on this, two reasons: > > 1. Subjective it may be, but my subjective opinion is that this does > not come up often enough to warrant this change. > 2. When it does come up for those learning the language, they learn a > useful idiom of using '_' or '__' for variables that you intend not be > used. > > Thanks, > Allan. > > > > On 30 March 2017 at 10:59, Markus Meskanen <markusmeska...@gmail.com> wrote: >> >> >> On Thu, Mar 30, 2017 at 12:53 PM, Nick Coghlan <ncogh...@gmail.com> wrote: >>> >>> Because it's relatively rare to not use the loop variable for anything >>> (even if it's just a debug message), and in the cases where you >>> genuinely don't use it, a standard idiom can be applied (using a >>> single or double underscore as a dummy variable), rather than all >>> future users of the language needing to learn a special case syntax. >> >> >> I think "relatively rare" is rather subjective, it's surely not everyday >> stuff but that doesn't mean it's not done often. >> And instead of learning a special syntax, which is simple and easy to >> understand when they google "repeat many times python", they now end up >> learning a special semantic by naming the variable with an underscore. If >> and when someone asks "how to repeat many times in Python", I'd rather >> answer "use repeat_for X" instead of "use for _ in range(X)" >> >> _______________________________________________ >> Python-ideas mailing list >> Python-ideas@python.org >> https://mail.python.org/mailman/listinfo/python-ideas >> Code of Conduct: http://python.org/psf/codeofconduct/ >> _______________________________________________ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
