一尘不染

用Python编写的CSV文件在每行之间都有空行

python

import csv

with open('thefile.csv', 'rb') as f:
  data = list(csv.reader(f))
  import collections
  counter = collections.defaultdict(int)

  for row in data:
        counter[row[10]] += 1


with open('/pythonwork/thefile_subset11.csv', 'w') as outfile:
    writer = csv.writer(outfile)
    for row in data:
        if counter[row[10]] >= 504:
           writer.writerow(row)

该代码读取thefile.csv,进行更改并将结果写入thefile_subset1

但是,当我在Microsoft Excel中打开生成的csv时,每条记录后都有一个额外的空白行!

有没有办法使它不放在多余的空白行?


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2020-02-10

共1个答案

一尘不染

在Python 2中,请outfile使用模式'wb'而不是来打开'w'。该csv.writer写入\r\n直接到文件中。如果你未以二进制模式打开文件,它将写入,\r\r\n因为在Windows 文本模式下会将每个文件\n转换为\r\n

在Python 3中,所需的语法已更改(请参见下面的文档链接),因此请改用outfile其他参数newline=''(空字符串)打开。

例子:

# Python 2
with open('/pythonwork/thefile_subset11.csv', 'wb') as outfile:
    writer = csv.writer(outfile)

# Python 3
with open('/pythonwork/thefile_subset11.csv', 'w', newline='') as outfile:
    writer = csv.writer(outfile)
2020-02-10