Question

我试图找到一种从其他文件中写入CSV文件的方法。第一行是标题，必须不带引号。所有其他行必须带引号。

我尝试使用DictWriter获取标题并写入所有行，但仍引用所有行（带标题）。

这是我写的一个例子：

writer = csv.DictWriter(csvOutputFile, fieldnames=FileHeader.getFields(self), delimiter=',', quotechar='\"', quoting=csv.QUOTE_NONNUMERIC)
writer.writeheader()

输出文件应如下所示：

column1,column2,column3
"1111","2222","3333"

Answer 1

A simple way would be to use 2 different csv writers on the same file object:

writer = csv.DictWriter(csvOutputFile, fieldnames=FileHeader.getFields(self),
    delimiter=',', quotechar='\"', quoting=csv.QUOTE_NONE)
writer.writeheader()
writer = csv.DictWriter(csvOutputFile, fieldnames=FileHeader.getFields(self),
    delimiter=',', quotechar='\"', quoting=csv.QUOTE_ALL)
# actually write the data to writer

Answer 2

我认为您可以在编写标题后将writer的定义从quoting=csv.QUOTE_NONE更改为quoting=csv.QUOTE_ALL。

import csv

with open('eggs2.csv','w') as csvfile:
    spamwriter = csv.writer(csvfile, delimiter=',',
                            quotechar='"', quoting=csv.QUOTE_NONE)
    spamwriter.writerow(['column1','column2','column3','column...'])
    spamwriter = csv.writer(csvfile, delimiter=',',
                            quotechar='"', quoting=csv.QUOTE_ALL)
    spamwriter.writerow(['Spam'] * 5 + ['Baked Beans'])
    spamwriter.writerow(['Spam', 'Lovely Spam', 'Wonderful Spam'])
    spamwriter.writerow([1111, 2222, 33333])

结果：

column1,column2,column3,column...
"Spam","Spam","Spam","Spam","Spam","Baked Beans"
"Spam","Lovely Spam","Wonderful Spam"
"1111","2222","33333"

在Python 3.x中写入CSV而不用第一行的引号

2 个答案: