expression.py 文件源码

def peval_single_compare(state, ctx, op, left, right):

    func = COMPARE_OPS[type(op)]

    state, result = peval_call(state, ctx, func, args=[left, right])
    if not is_known_value(result):
        state = state.update(temp_bindings=state.temp_bindings.del_(result.func.id))
        result = ast.Compare(left=result.args[0], ops=[op], comparators=[result.args[1]])
    return state, result