Python NameError: 名称 'csv' 未定义

NameError: name 'csv' is not defined

提问by Nicole

I am new to Python, and I want to write a csv file, that lists the roots of my equation. I am working on Sage. My code is :

我是 Python 新手，我想编写一个 csv 文件，其中列出了方程的根。我正在研究 Sage。我的代码是：

with open('out.csv', 'w') as f:
    c = csv.writer(f)
    c.writerows(root)

The error I am getting is " NameError: name 'csv' is not defined "

我得到的错误是“ NameError: name 'csv' is not defined ”

Can anybody help please?

有人可以帮忙吗？

回答by Moses Koledoye

csvis not a builtin, although it's part of the standard library. You need to importit:

csv不是内置的，尽管它是标准库的一部分。您需要导入它：

import csv

# your code