[Python-ideas] Add "namereplace" error handler

[Serhiy Storchaka]

11.06.13 14:47, Amaury Forgeot d'Arc написав(ла):
> It's easy to implement in Python code:
>
> import codecs, unicodedata
>
> def namereplace_errors(exc):
>      replace = "\\N{{{}}}".format(
> unicodedata.name <http://unicodedata.name>(exc.object[exc.start]))
>      return replace, exc.start + 1
>
> codecs.register_error('namereplace', namereplace_errors)

Indead. But namereplace_errors() should be a little more verbose:

def namereplace_errors(exc):
     if not isinstance(exc, UnicodeEncodeError):
         raise exc
     try:
         replace = r'\N{%s}' % unicodedata.name(exc.object[exc.start])
     except ValueError:
         return codecs.backslashreplace_errors(exc)
     return replace, exc.start + 1

Even if do not register this handler from the start, it may be worth to 
provide namereplace_errors() in the unicodedata module.