On 2012-10-10 20:46, Antoine Pitrou wrote:
On Wed, 10 Oct 2012 15:36:08 -0400 Mike Graham <mikegraham@gmail.com> wrote:
The literal"\c" should be an error but in practice means "\\c". It's probably too late to make this invalid syntax as it out to be, but I wonder if a warning isn't in order, especially with the theoretical potential of adding new string escapes in the future.
-1. This will make life more difficult with regular expressions (and produce lots of spurious warnings in existing code).
How would it make life more difficult with regular expressions? I would've preferred: 1. Unknown escapes in string literals give a compile-time error 2. Raw string literals treat backslashes as pure literals 3. Unknown escapes in regex patterns give a run-time error Unfortunately, changing them would break existing code. (I retain the behaviour of re in the regex module for this reason, not that I like it. :-() It would've been nice if the 'fix' had been made in Python 3...