Python程序读取文件，然后计算sum、average、min、max，并在文件中只有一个数字或为空时给出消息

Question

def main():
    filename = input("Enter a file name: ")
    with open(filename) as f:
        data = [int(line) for line in f]
        if len(data) > 2:
            print('The smallest number in the file is: ', + min(data))
            print('The largest number in the file is: ', "{:,}".format(+ max(data)))
            print('The total sum of the number in the file is: ', "{:,}".format(sum(data)))
            print('The average from the numbers in the file is: ', "{:,.2f}".format(sum(data)/len(data)))
        elif len(data) == 1:
            print ('There is only one number in your file to process.')
        else:
            print('There are no numbers in your file to process.')         
        f.close()
main()

Answer 1

根据您的评论，我认为问题出在您的数据上，为了解决这个问题，您可以使用以下内容：

lines = filter(None, (line.strip() for line in f))
data = [int(line) for line in lines if line.isnumeric()]

请注意，这只解决了您遇到的异常——我还没有完成其余的代码并验证逻辑。