On Jun 09, 2011, at 04:45 PM, Stephen J. Turnbull wrote: >R. David Murray writes: > > > Yeah, it would be really nice if setting (say) 'To' replaced it, but > > setting (say) 'Resent-To' appended. But that way lies chaos :) > >Especially since "Resent-To" (and other Resent-*, as well as trace >headers) needs to be *pre*pended. :)
.insert(i, header) probably, where `i` could either (maybe) be an integer or the name of the first header to insert the new header before. >"Enforced", yes, it's out of scope, for several reasons. However, any >given application may know at some early stage that headers are >complete, and want to check policy at that point. So there should be >a mechanism to explicitly check policy conformance, perhaps a >.check_policy() method on Message objects. Then it becomes a question >of whether the policy check should ever be called implicitly, or >always left up to the application. Smart minds think alike. :) -Barry
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