设置 CSV 文件的换行符

Question

我试图在写入 csv 文件时创建一个换行符，但它一直给我一个错误 'ValueError: illegal newline value: '。我试过用 'a'.

替换 'w'

import csv

number = input("Enter student count: ")

jada = 1


for i in  number:
    student = input("Student name: ")
    value = input("Enter the deposited amount: ")
    with open('budget.csv', 'w', newline=' \n', encoding = 'utf-8') as file:
        write = csv.writer(file)
        writer.writerow(["Nmr", "Name", "Deposited amount"])
        writer.writerow([jada, student, value])
        jada += 1

Answer 1

你得到 ValueError: illegal newline value: 因为你的换行符开头有一个 space， \n.

但是如果您试图强制换行，那将不会有任何效果。创建writer时需要使用lineterminator^1选项：

writer = csv.writer(file, lineterminator="\n")

CSV 文档特别推荐使用 newline=""^2:

If csvfile is a file object, it should be opened with newline=''

因此您的代码应该更像这样：

with open("budget.csv", "w", newline="") as file:
    writer = csv.writer(file, lineterminator="\n")

设置 CSV 文件的换行符

Set CSV file's newline

python

csv

newline