def _opcode_set(*names):
    s = set()
    for name in names:
        try:
            s.add(_opcode(name))
        except KeyError:
            pass
    return s

# Opcodes that leave the code object.
Return a set of opcodes by the names in `names`.
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/coverage/parser.py/_opcode_set