[Python-ideas] For-loop variable scope: simultaneous possession and ingestion of cake

[Bruce Leban]

Um, I think this is more complicated. Consider:

    i = 0
    def f():
         i += 1
         return lambda: i

Now lambda: i is bound to i so every time I call f it will return a function
that returns the current value of i not the one at the time f was called. So
I can fix this by immanetization:

    i = 0
    def f():
         i += 1
         return lambda: immanentize i

This will return lambda: 1, then lambda: 2, etc. right? No. It returns
lambda: 0, lambda: 0, etc.

--- Bruce
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