I wouldn't call myself a Python programmer, but I have written a lot of Python
and I know quite a few that do use and love the "for-else" construct.
The most common (if not only?) usage that I have seen is something like
for i in xrange(…):
some-algorithm…
if coverged:
break
else:
fail!("Did not converge!")
While cool and all, I cannot think that it has many use-cases outside of this.
A macro is probably sufficient.
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