[Python-3000] bytes regular expression?

[Victor Stinner]

On Thursday 09 August 2007 17:40:58 I wrote:
> My attached patch fix both bugs:
>  - convert bytes to str8 in _compile() to be able to hash it
>  - add a special version of escape() for bytes

My first try was buggy for this snippet code:
   import re
   assert type(re.sub(b'', b'', b'')) is bytes
   assert type(re.sub(b'(x)', b'[\\1]', b'x')) is bytes

My first patch mix bytes and str8 and so re.sub fails in some cases.

So here is a new patch using str8 in dictionary key and str in regex parsing 
(sre_parse.py) (and then reconvert to bytes for 'literals' variable).

Victor Stinner
http://hachoir.org/
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