[Python-Dev] cpython: Issue #1172711: Add 'long long' support to the array module.

[Stephen J. Turnbull]

Georg Brandl writes:

 > I don't think so. "skip if not" reads pretty well for me, while I
 > always have to think twice about "unless" -- may be a non-native-
 > speaker thing.

FWIW, speaking as one native speaker, I'm not sure about that.  "do ...
if not condition" doesn't bother me, whether I think of the condition
as an exception or as the normal state of affairs.  I find "do ...
unless condition" to be quite awkward if the condition is a normal state.