Python写入列表到CSV

Question

我对CSV语句的写入无法正常工作；

我有一个包含字符串的列表，每个字符串都需要在csv中写入自己的行；

mylist = ['this is the first line','this is the second line'........]
with open("output.csv", "wb") as f:
    writer = csv.writer(f)
    writer.writerows(mylist)

问题是，我的输出被弄乱了，看起来像这样；

't,h,i,s, i,s, t,h,e, f,i,r,s,t, l,i,n,e,'.... etc.

我需要成为;

'this is the first line'
'this is the second line'

Answer 1

csvwriter.writerows应该与序列的序列（或可迭代的）一起使用。 （ mylist也是一个序列序列，因为字符串可以看作是一个单字符字符串序列）

对每个mylist项目使用csvwriter.writerow ：

mylist = ['this is the first line','this is the second line'........]
with open("output.csv", "wb") as f:
    writer = csv.writer(f)
    for row in mylist:
        writer.writerow([row])

要使用writerows ，将列表转换为序列序列：

mylist = ['this is the first line','this is the second line'........]
with open("output.csv", "wb") as f:
    writer = csv.writer(f)
    rows = [[row] for row in mylist]
    writer.writerows(rows)

Answer 2

您必须迭代列表项，例如

  mylist = ['this is the first line','this is the second line']
  with open("output.csv", "wb") as f:
      writer = csv.writer(f)
      for item in mylist:
          writer.writerow([item])