[Web-SIG] Declaring PEP 3333 accepted (was: PEP 444 != WSGI 2.0)

[Andrey Popp]

Hello,

while PEP-3333 declared as "final" (not sure if it means the same as "accepted"), I would like to draw your attention at this bug report[1].

Personally, I'd like to fix PEP in the way it resolves mentioned bug. But if you disagree with me, I'd like at least to add note about statements like:

  "object A should be of type TA"

It's not common behavior for Python objects, and in some meaning it just breaks OOP in Python (see Liskov substitution principle[2]). Isn't this looks like unpythonic or at least as leaking abstraction?

[1]: http://bugs.python.org/issue10935
[2]: http://en.wikipedia.org/wiki/Liskov_substitution_principle