[Python-Dev] Parametrized codecs

[Gordon McMillan]

Andrew wrote:

> Are there any codecs that can take parameters at initialization
> time? If not, how about supporting them?  Here's a motivating
> example:
> 
> import codecs
> f = codecs.open('output', 'wb', encoding='DES',  # arguments to
> open()
>                 key = '...', mode = DES.ECB)
> f.write('This will be encrypted\n')
> f.close()

RC4, maybe. But I think you're asking for trouble in trying to 
pretend a block-mode cipher is a stream.

- Gordon