On Sat, Oct 06, 2018 at 12:23:49AM +0300, Serhiy Storchaka wrote: > > I don't understand how three spaces would prevent errors in a way that > > four wouldn't. > In many editors and on terminal > > for a in x: > if a: > b() > <-tab-->c() > > looks indistinguishable from > > for a in x: > if a: > b() > c() > > but the former is a syntax error in Python 3. > > If use 3-space indentation this error is more visible: > > for a in x: > if a: > b() > <-tab-->c()
That is only incidental because the "width" of a tab stop is what you define it to be. On my system it might just be 3 spaces which would turn your argument on its head. Karsten -- GPG 40BE 5B0E C98E 1713 AFA6 5BC0 3BEA AC80 7D4F C89B -- https://mail.python.org/mailman/listinfo/python-list
