[Python-Dev] Emit SyntaxWarning on unrecognized backslash escapes?

[Antoine Pitrou]

On Mon, 23 Feb 2015 16:58:29 -0300
"Joao S. O. Bueno" <jsbueno at python.org.br> wrote:
> On 23 February 2015 at 16:47, Antoine Pitrou <solipsis at pitrou.net> wrote:
> > On Mon, 23 Feb 2015 09:29:09 -0800
> > Guido van Rossum <guido at python.org> wrote:
> >> On Mon, Feb 23, 2015 at 9:01 AM, Ethan Furman <ethan at stoneleaf.us> wrote:
> >>
> >> > On 02/23/2015 08:12 AM, Brett Cannon wrote:
> >> > > On Mon Feb 23 2015 at 10:55:23 AM Chris Angelico wrote:
> >> >
> >> > >> Is it at all possible for this to be introduced in the 2.x line [...]
> >> > >
> >> > > Starts with a minor version.
> >> >
> >> > Isn't there a -3 switch or something like that in 2.7.x to trigger
> >> > warnings/errors to help port to 3.x?  Seems like this
> >> > kind of warning could go there.
> >> >
> >>
> >> If we agree it will be a syntax error in 3.x eventually.
> >
> > That sounds frankly like a pedantic change.
> 
> The real problem there, even motivating the request, seems to be new
> users in Windows platforms
> using "\" as file path separator.

Thanks. That sounds like a good reason indeed.

Regards

Antoine.