python - 如何修复输出文件不逐行破坏输出？

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该文件中的数据解析到另一个文本文件。现在，我可以逐行读取输入文件并通过命令行参数解析出数据。但是，我尝试编写的输出文件是在一行中打印所有内容，而不是逐行中断输出。

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，我很惊讶这段代码的工作原理......因为您在使用它后定义了行

   // ( * )
   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 ( [] )