python字符串格式转换报错

# 学习者：xinkai
# 时间：2023/1/3 10:45
list1=[int(i) for i in input().split()]
sum=0
for item in list1:sum+=item
avg_s=sum/len(list1)
print(type(avg_s))
print(sum,end=' ')
print("%.2f" %avg_s)

需求是是输入几个数字，每个数字以空格分隔，求这些数字的平均值、总和，但是最后一行显示一直报错，发现忘记加%，写成%.2f就对了

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TypeError: not all arguments converted during string formatting报错解决

python字符串格式转换报错

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