python - 如何修复输出文件不逐行中断输出？

Question

我正在编写一个 Python 脚本来读入一个文件，逐行读取该文件并通过用户命令行参数将数据从该文件解析到另一个文本文件。现在，我能够逐行读取输入文件并通过命令行参数解析数据。但是，我尝试编写的输出文件在一行中打印所有内容，而不是逐行打断输出。

临时日志:

06 May 19 03:40:35 3 abCodeClearTrap Error Clear Trap (agent: 12367a12,
chassis:12367a12, ErrIdText: ERROR ID TEXT, csssi: EXTIFG, clearedID:
0x089088394)

06 May 19 03:44:35 3 abCodeErrorTrap Error Trap (agent: 12368a15, chassis:
12368a15, ErrIdText: Skip this item, csssi: SSRSSR, clearedID:
0x089088394)

我的代码:

import re, sys

with open('temp.log') as f:
   lines = f.readlines()

with open('output.txt') as o:

    data = []
    for line in lines:
       if 'date' in sys.argv:
           try:
              date = re.match(r'\date{2} \w+ \date{2}', line).group()
              row.append(date)
           except:
              date = 'date'
       if 'agent' in sys.argv:
           try:
              agent = re.search(r'agent:\s(.*?),', line).group()
              row.append(agent)
           except:
              agent = 'agent:'
       if 'err' in sys.argv:
           try:
              errID = re.search(r'ErrIdText:\s(.*?),', line).group()
              row.append(errID)
           except:
              errID = 'ErrIdText:'
       if 'clear' in sys.argv:
           try:
              clear = re.search(r'clearedID:\s(.*?)\)', line).group()
              row.append(clear)
           except:
              clear = 'clearedID:'

       row = []
       data.append(row)

     for row in data:
        lines = o.writelines(row)
        print(row)

     o.close()

没有错误消息，但我希望我的 output.txt 文件逐行分解。

例如:如果用户运行:

python export.py agent chassis

我希望打印 output.txt

['agent: 12367a12,', 'chassis:12367a12,']
['agent: 12368a15,', 'chassis:12368a15,']

但是output.txt中的输出是:

agent:12367a12, chassis:12367a12, agent:12368a15, chassis:12368a15,

Answer 1

给你:)

for row in data:
    lines = o.writelines(row)
    lines = o.writelines("\n")
    print(row)

或

for row in data:
    row.append("\n")
    lines = o.writelines(row)
    print(row)

顺便说一句，我很惊讶这段代码能正常工作......因为你在使用它之后定义了行

   // ( * )
   if something
       try:
          date = re.match(r'\date{2} \w+ \date{2}', line).group()
          row.append(date) // should crash
       except:
          date = 'date'
   if 'agent' in sys.argv:
       try:
          agent = re.search(r'agent:\s(.*?),', line).group()
          row.append(agent) // should crash
       except:
          agent = 'agent:'
   if 'err' in sys.argv:
       try:
          errID = re.search(r'ErrIdText:\s(.*?),', line).group()
          row.append(errID) // should crash
       except:
          errID = 'ErrIdText:'
   if 'clear' in sys.argv:
       try:
          clear = re.search(r'clearedID:\s(.*?)\)', line).group()
          row.append(clear) // should crash
       except:
          clear = 'clearedID:'

   row = [] // this should be defined where I put the star ( * )
   data.append(row) // always appends empty row ( [] )