求助：同一份代码，在海龟编辑器可以正常运行，在idle却不可以

[xiumei2008]

源代码如下：

height, weight = eval(input("请输入身高（米）和体重（公斤）[逗号隔开]："))
bmi = weight/pow(height, 2)  # 身体质量指数=体重除以身高的平方
print("BMI数值为：{:.2f}".format(bmi))
who, dom = "", ""
if bmi < 18.5:
    who = "偏瘦"
elif 18.5 <= bmi < 25:
    who = "正常"
elif 25 <= bmi < 30:
    who = "偏胖"
else:
    who = "肥胖"
if bmi < 18.5:
    dom = "偏瘦"
elif 18.5 <= bmi < 24:
    dom = "正常"
elif 24 <= bmi < 28:
    dom = "偏胖"
else:
    dom = "肥胖"
print("BMI 指标为：国际'{0}',国内'{1}'".format(who, dom))