硬件场景下Python try-catch中简化while循环的实现需求

从事硬件相关工作，涉及的物理变量可能随时变化，需要在try-catch结构中编写while循环，实现只要get_parameters函数未返回3就持续执行，返回3时终止循环，并简化现有重复代码。

现有代码 #

try:
    local_factory_param_multi_burn = _itwo_cnc_instance.get_parameters("factory_param_multi_burn")
except Exception as e:
    raise Exception(f"Failed to get factory_param_multi_burn. {e}")
while local_factory_param_multi_burn != 3:
    try:
        local_factory_param_multi_burn = _itwo_cnc_instance.get_parameters("factory_param_multi_burn")
    except Exception as e:
        raise Exception(f"Failed to get factory_param_multi_burn. {e}")

简化后的代码 #

try:
    while _itwo_cnc_instance.get_parameters("factory_param_multi_burn") != 3:
        pass
except Exception as e:
    raise Exception(f"Failed to get factory_param_multi_burn. {e}")

简化说明 #

• 将参数获取操作直接嵌入循环条件，无需额外变量存储中间值，减少冗余代码
• 外层统一的try-catch块覆盖所有get_parameters调用的异常处理，避免重复的异常捕获逻辑
• 完全满足需求：每次循环都会检查物理变量值，只要返回值不等于3就持续执行，返回3时立即终止循环，任何一次调用抛出异常都会触发统一的错误提示

内容的提问来源于stack exchange，提问作者Ino