[Python-Dev] Reintroduce or drop completly hex, bz2, rot13, ... codecs

Terry Reedy tjreedy at udel.edu
Thu Jun 10 21:31:58 CEST 2010


On 6/10/2010 7:08 AM, M.-A. Lemburg wrote:
> Walter Dörwald wrote:

>>> The PEP would also serve as a reference back to both this discussion and
>>> the previous one (which was long enough ago that I've forgotten most of it).
>>
>> I too think that a PEP is required here.
>
> Fair enough. I'll write a PEP.

Thank you from me.
>
>> Codecs support several types of error handling that don't make sense for
>> transform()/untransform(). What should 'abc'.decode('hex', 'replace')
>> do? (In 2.6 it raises an assertion error, because errors *must* be strict).

I would expext either ValueError: errors arg must be 'strict' for 
trransform or else TypeError: tranform takes 1 arg, 2 given.

> That's not really an issue since codecs don't have to implement
> all error handling schemes.
>
> For starters, they will all only implement 'strict' mode.

Terry Jan Reedy




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