在循環中讀取日誌文件並打印所需的結果（python）

Question

我正在嘗試讀取3個日誌文件並使用解析來提取重新請求的信息;我需要這個代碼在一個循環中運行，並且如果它們符合重新設置的參數，則獲得新的行。

我寫了下面的代碼：

import os 

x_list = [] 
y_list = [] 
z_list = [] 

x_log = open('x.txt') 
for line in x_log: 
    line = line.rstrip() 
    if 'error' in line: 
     x = line 
     for x in x_log: 
      if not x in x_log: 
       x_list.append(x) 
       print('ERROR1',x) 

y_log = open('y.txt') 
for line in y_log: 
    line = line.rstrip() 
    if 'error' in line: 
     x = line 
     for x in y_list: 
      if not x in y_list: 
       y_list.append(x) 
       print('ERROR2',x) 

z_log = open('z.txt') 
for line in z_log: 
    line = line.rstrip() 
    if 'error' in line: 
     x = line 
     for x in z_log: 
      if not x in z_list: 
       z_list.append(x) 
       print('ERROR3',x) 

什麼，我試圖完成： 1.讀取文件。 2.搜索相關行。 3.如果信息不存在於列表中，則附加到列表中。 4.打印行。

我需要幫助設置一個while循環，並且在將該行與列表內容進行比較時，我體面地做了一些錯誤。

UPDATE1：

行，所以我設法讓我的代碼加入到工作：

and line not in x_list: 

我原線路：

if 'error' in line: 

所以現在我得到：

if 'error' in line and line not in x_list: 

全碼：

x_list = [] 
y_list = [] 
z_list = [] 

x_log = open('x.txt') 
for line in x_log: 
    line = line.rstrip() 
    if 'error' in line and line not in x_list: 
     x_list.append(line) 
     print('ERROR-X',line) 

y_log = open('y.txt') 
for line in y_log: 
    line = line.rstrip() 
    if 'error' in line and line not in y_list: 
     y_list.append(line) 
     print('ERROR-Y',line) 

z_log = open('z.txt') 
for line in z_log: 
    line = line.rstrip() 
    if 'error' in line and line not in z_list: 
     z_list.append(line) 
     print('ERROR-Z',line) 

它做什麼，我需要，但我仍然需要在一個循環中運行它，任何人都可以幫我嗎？

UPDATE2： 設法得到它在一個循環工作，如果添加了新的生產線，並滿足解析參數將被打印出來。

代碼：

x_list = [] 
y_list = [] 
z_list = [] 
t = 1 

while t == 1: 
    x_log = open('x.txt','r') 
    for line in x_log: 
     line = line.rstrip() 
     if 'error' in line and line not in x_list: 
      x_list.append(line) 
      print('ERROR-X',line) 

    y_log = open('y.txt','r') 
    for line in y_log: 
     line = line.rstrip() 
     if 'error' in line and line not in y_list: 
      y_list.append(line) 
      print('ERROR-Y',line) 

    z_log = open('z.txt','r') 
    for line in z_log: 
     line = line.rstrip() 
     if 'error' in line and line not in z_list: 
      z_list.append(line) 
      print('ERROR-Z',line) 

Answer 1

優化方法：

def get_error_lines(fp, lines_set, suffix=''): 
    ''' fp - file pointer; 
     lines_set - a set of unique error lines; 
     sufix - ERROR number(suffix) ''' 

    for line in fp: 
     line = line.rstrip() 
     if 'error' in line and line not in lines_set: 
      lines_set.add(line) 
      print('ERROR' + suffix, line) 

# using set objects to hold unique items 
x_set = set() 
y_set = set() 
z_set = set() 

with open('x.txt', 'r') as x_log, open('y.txt', 'r') as y_log, open('z.txt', 'r') as z_log: 
    get_error_lines(x_log, x_set, '1') 
    get_error_lines(y_log, y_set, '2') 
    get_error_lines(z_log, z_set, '3')