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> Incidentally, the scoping rules of both Lua and Python also mean
> defining recursive local functions is not straightforward, because
> variable holding the function object is not visible to the function!

Python is going to revisit scoping with Python 3000.  I haven't
followed the discussions, but I suspect that Python 3000 will
probably become fully lexically scoped, and try to retain as
much of its simple scripting feel subject to that constraint.