def iterFilesInTrove(self, n, v, f, *args, **kw):
        for source in self.sources:
            try:
                for value in source.iterFilesInTrove(n, v, f, *args, **kw):
                    yield value
                return
            except __HOLE__:
                pass
            except errors.TroveMissing:
                pass
        raise errors.TroveMissing(n,v)
dataset/ETHPy150Open sassoftware/conary/conary/repository/trovesource.py/SourceStack.iterFilesInTrove