On Sat, Oct 6, 2018 at 7:25 AM Serhiy Storchaka <storch...@gmail.com> wrote: > > 05.10.18 23:53, Chris Angelico пише: > > 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.
Considering that 8-space tabs are at least as common as 4-space, and that tabs measured in millimeters are also entirely viable, I don't think there's any way to define this perfectly consistently. It depends entirely on the particular setup that you have, and therefore is perfect for a per-project style guide. But hey. It's an instant syntax error. It's not exactly hard to fix. Some editors (including the one I use - SciTE) will highlight mismatched indentation right there as you type. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
