[Python-Dev] Currently baking idea for dict.sequpdate(iterable, value=True)

[Guido van Rossum]

>     def sequpdate(self, iterable, value=True):
>         for elem in iterable:
>             self[elem] = value
>         return self

I'm strongly against the "return self" part.  All your examples use

  x = {}.sequpdate(...)

which suggests that you're really looking for a different constructor
as a class method.

--Guido van Rossum (home page: http://www.python.org/~guido/)