我将数据从循环写入csv文件.

预期结果：每次迭代都应在新列中写入数据.

实际上,它会覆盖上一次迭代的数据.如何为每次迭代添加新列？

def keywordsToCsv(filename,single_phrases):

    path = 'keywords/keywords.csv'

    with open(path,'w',encoding='utf-8') as csvfile:
        filewriter = csv.writer(csvfile,delimiter=',',quotechar='|',quoting=csv.QUOTE_MINIMAL)
        filewriter.writerow([filename])
        for phrase in single_phrases:
            filewriter.writerow([phrase])