基于python的日志分析程序（根据关键字提取日志中希望看到的内容以及截取一段时间内的日志）

最近测试中看日志比较多，于是想起了用python提取我需要看的内容：
目的：1.多个日志文件、提取其中的报警日志、数据生成日志，轮询信息帧等内容，独立生成一个文件
2.截取日志中某一个时间段内的日志
代码1：

#! C:\Python\Python36
# -*- coding: utf-8 -*-
# @Time : 2021/9/18 14:50
# @Author : liuchengyong
# @File : timeTest.py
# @Software: PyCharm
timeList = []

fileData = ['DataProc.log','DataProc.log.1','DataProc.log.2','DataProc.log.3','DataProc.log.4']
fileModbus = ['ProtocolModbus.log','ProtocolModbus.log.1','ProtocolModbus.log.2','ProtocolModbus.log.3','ProtocolModbus.log.4']
fileModbusTcp = ['ProtocolModbusTcp.log','ProtocolModbusTcp.log.1','ProtocolModbusTcp.log.2','ProtocolModbusTcp.log.3','ProtocolModbusTcp.log.4']
#
fileName = fileData

keyWord = ['alarm info','create alarm','add alarm file']
alarmWord = []
offlineWord = []
slaveWord = []

# 接收文件
alarmFile = 'alarm.txt'
offlineFile = 'offline.txt'
slaveTcpFile = 'slaveTcp.txt'
slaveRtuFile = 'slaveRtu.txt'

recvFile = alarmFile
# 抽取函数
def fileExtract(fileList,keyWord):
    print("extract")
    for file in fileList:
        with open(file,'r') as f:
            while True:
                m = f.readline()
                xList = []
                for Word in keyWord:
                    x = m.rfind(Word)
                    xList.append(x)

                for x in xList:
                    if x != -1:
                        timeList.append(m)
                        break
                if m == '':
                    break

def main():
    print("main")
    fileExtract(fileName,keyWord)
    print(timeList)
    with open(recvFile, 'w') as f2:
        for offline in timeList:
            f2.writelines(offline)

if __name__ == '__main__':
    main()

代码2：
字符串是可以比大小的，所以不需要转为时间戳再比较

#! C:\Python\Python36
# -*- coding: utf-8 -*-
# @Time : 2021/9/18 17:30
# @Author : liuchengyong
# @File : timeExact.py
# @Software: PyCharm
fileName = 'alarm.txt'
timeList = []
start = '2021-09-18 01:26:26,233'
end = '2021-09-18 01:29:30,665'
with open(fileName,'r') as f:
    while True:
        m = f.readline()
        #print(m)
        #print(type(m))
        #print(m[0:23])
        if m[0:23] >= start and m[0:23]<= end:
            timeList.append(m)
        if m == '':
            break
for times in timeList:
    print(times)