Question

我有一个CSV数据列表，如下所示：

Jim     57      83  55  78
John        98  91  80  
Michael 61      88  80  60
Harry   92      58  50  57
James   51      97  52  53

我希望在没有导入CSV模块的情况下返回，我想要打印的空白值无，并且在名称周围加双引号，并且没有整数引号：

[("Jim",57,None,83,55,78), ("John",None,98,91,80,None), ("Michael",61,None,88,80,60)]....

我尝试了一些代码：

def student_mark(studentfile):
     f = open (studentfile, 'r')
     list = []
     for line in f: 
         list.append(tuple(line.strip().split(',')))
     print (list)

studentfile = " users/.../units.csv"
student_mark(studentfile)

但现在结果如下：

[('Jim','57','','83','55','78'), ('John','','98','91','80',''), ('Michael','61','','88','80','60')

任何人都可以帮助我吗？

Answer 1

关键是使用str.isdigit（）。判断字符串是否为数字，这个答案可以帮助你吗？

import csv


filepath = r'C:\Users\kudangren\Desktop\testfile\testfile.csv'


def CleanData(line):
    listline = []
    for i in line:
        if i.isdigit():
            listline.append(int(i))
        elif i == '':
            i = 'None'
            listline.append(i)
        else:
            listline.append(i)
    return tuple(listline)


def student_mark(studentfile):
    with open(studentfile,'r') as csvfile:
        read = csv.reader(csvfile)
        resultlist = []
        for line in read:
            resultline=CleanData(line)
            resultlist.append(resultline)
        print(resultlist)

student_mark(filepath)

enter image description here

Answer 2

以下是我重建的代码：

filepath = r'C:\Users\kudangren\Desktop\testfile\testfile.csv'


def CleanData(line):

    listline = []
    for i in line:
        if i.isdigit():
            listline.append(int(i))
        elif i == '':
            i = 'None'
            listline.append(i)
        else:
            listline.append(i)
    return tuple(listline)


def student_mark(studentfile):
    with open(studentfile,'r') as csvfile:
        read = csvfile.read()
        resultlist = []
        for line in read.split('\n'):
            result=CleanData(line.split(','))
            resultlist.append(result)

        print(resultlist)


student_mark(filepath)

执行结果：

[('Jim', 57, 'None', 83, 55, 78), ('John', 'None', 98, 91, 80, 'None'), ('Michael', 61, 'None', 88, 80, 60), ('Harry', 92, 'None', 58, 50, 57), ('James', 51, 'None', 97, 52, 53)]

导入csv文件并返回两个字符串和整数列表，分别在python中没有csv模块

2 个答案: