python解析oracle日志中的报错

作为python的简单应用，这里将oracle日志文件中的报错内容截取出来。

方案构思：经过分析日志结果，以时间戳为楔子，两个时间戳之间内容作为分块，若果分块内存在报错内容，就将两个时间戳之间的分块内容打印出来。

import re

def get_time(week,tmp_file):
    time = []
    for line in tmp_file:
        tmp_line = line.split()
        lens = len(tmp_line)
        #print(lens)
        if lens > 3 :
            if (tmp_line[0] in  week[:]) and (int(tmp_line[2]) in range(1,32)):
                time.append(line.strip())
    return time

def get_logs(time,filetxt):
    i= 0
    n = i+1
    while i < len(time)-1 :
        while time[i] == time[n]:
            n +=1
            if n == len(time)-1:
                break
        pattern = re.compile( time[i]+'(.*?)'+time[n],re.S)
        result = re.findall(pattern,filetxt)
        seltxt = result[0]
        if "ORA-" in seltxt or "Errors" in seltxt or "error" in seltxt or "TNS-" in seltxt:
            print('

===>>报错起始时间:', time[i])
            print(''.join(result))
            # print(type(result))
            print('<<===报错终止始时间:', time[n])
        i = n

def main():
    logfile = r'D:WorkHomepythonoraclealert_irmsdb.log'
    week = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
    file = open(logfile)
    filelines = file.readlines()
    tmp_file = filelines[-200:]
    time = get_time(week,tmp_file)
    filetxt = "".join(tmp_file).strip()
    get_logs(time,filetxt)

if __name__ == '__main__':
    main()