[Python-Dev] Polymorphic best practices [was: (Not) delaying the 3.2 release] (original) (raw)

Antoine Pitrou solipsis at pitrou.net
Thu Sep 16 17:40:53 CEST 2010

On Thu, 16 Sep 2010 11:30:12 -0400 "R. David Murray" <rdmurray at bitdance.com> wrote:

And then BaseHeader uses self.lit.colon, etc, when manipulating strings. It also has to use slice notation rather than indexing when looking at individual characters, which is a PITA but not terrible. I'm not saying this is the best approach, since this is all experimental code at the moment, but it is an approach....

Out of curiousity, can you explain why polymorphism is needed for e-mail? I would assume that headers are bytes until they are parsed, at which point they become a pair of unicode strings (one for the header name and one for its value).

Regards

Antoine.

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