[Python-ideas] Re: Live variable analysis -> earlier release?

This would break uses of locals(), e.g.

def foo(a, b): x = a + b if not x: return None del x print('{x}, {a}, {b}'.format(**locals())) return a * b

foo(1, 2)

Plus if the calculation raises an exception and I'm looking at the report on Sentry, I'd like to see the values of all variables. In particular I might have expected the function to return early and I want to see what `x` was.