a dictionary from a list

[David Bear]

I know there must be a better way to phrase this so google understands, but
I don't know how.. So I'll ask people.

Assume I have a list object called 'alist'.

Is there an easy way to create a dictionary object with the members of
'alist' being the keys in the dictionary, and the value of the keys set to
null?

-- 
David Bear
-- let me buy your intellectual property, I want to own your thoughts --