[Python-Dev] Re: What to do about invalid escape sequences

El lun., 5 de ago. de 2019 a la(s) 01:25, <raymond.hettinger@gmail.com> escribió:

We should revisit what we want to do (if anything) about invalid escape sequences.

For Python 3.8, the DeprecationWarning was converted to a SyntaxWarning which is visible by default. The intention is to make it a SyntaxError in Python 3.9.

What about allowing in 3.8 to from __future__ import this SyntaxWarning (so anybody can start kicking own code's tires), then 3.9 could make it a real SyntaxWarning, and 4.0 (3.10?) make it a SyntaxError? Of course, in a year or so we could decide to delay the last two steps even more... Regards, -- . Facundo Blog: http://www.taniquetil.com.ar/plog/ PyAr: http://www.python.org.ar/ Twitter: @facundobatista