On Tue, Jul 20, 2010 at 1:16 PM, Guido van Rossum <guido@python.org> wrote:

Given the large number of Python users familiar with SQL compared to
those familiar with Haskell, I think we'd do wise to pick a different
keyword instead of 'where'. I can't think of one right now though.

Taking a cue from mathematics, how about "given"?

c = sqrt(a*a + b*b) given:
a = retrieve_a()
b = retrieve_b()