Unrecognized escape sequences in string literals
ethan at stoneleaf.us
Tue Aug 11 16:35:54 CEST 2009
Steven D'Aprano wrote:
> On Mon, 10 Aug 2009 08:21:03 -0700, Douglas Alan wrote:
>>But you're right, it's too late to change this now.
> Not really. There is a procedure for making non-backwards compatible
> changes. If you care deeply enough about this, you could agitate for
> Python 3.2 to raise a PendingDepreciation warning for "unexpected" escape
> sequences like \z, Python 3.3 to raise a Depreciation warning, and Python
> 3.4 to treat it as an error.
> It may even be possible to skip the PendingDepreciation warning and go
> straight for Depreciation warning in 3.2.
And once it's fully depreciated you have to stop writing it off on your
More information about the Python-list