py3 prep: replacing iteritems and itervalues #33
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In python3, `dict.items()` and `dict.values()` are iterators by defualt, so the `iteritems` functions have been removed. In python2, these return a copy of the keys, which has small runtime penalty but is unlikely to be material for NixOps. Changing it to just `.items()` makes us both py2 and py3 compatible and prepares us for the migration NixOS#29.
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In python3,
dict.items()anddict.values()are iterators by defualt, so theiteritemsfunctions have been removed. In python2, these return a copy of thekeys, which has small runtime penalty but is unlikely to be material for NixOps.
Changing it to just
.items()makes us both py2 and py3 compatible and preparesus for the migration #29.
CC @grahamc @AmineChikhaoui