def equal_fields(matchdict, field):
    return equal(m[field] for m in matchdict.values())
Don't warn when a variable included in tuple unpacking is unused. It's
dataset/ETHPy150Open beetbox/beets/beetsplug/fromfilename.py/equal_fields--crossover with--dataset/ETHPy150Open kevinw/pyflakes/pyflakes/test/test_other.py/TestUnusedAssignment.test_tupleUnpacking