如何腌制包含字符串的文件？

Question

我正在尝试使用以下记录来解析日志文件：

Apr 29 06:56:48 example-server sshd[38254]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.183.209.132  user=root
Apr 29 06:56:50 example-server CRON[33299]: pam_unix(cron:session): session closed for user root
Apr 29 06:56:50 example-server sshd[38254]: Failed password for root from 123.183.209.132 port 55181 ssh2
Apr 29 06:56:56 example-server sshd[38254]: message repeated 2 times: [ Failed password for root from 123.183.209.132 port 55181 ssh2]
Apr 29 06:56:59 example-server sshd[38254]: fatal: Read from socket failed: Connection reset by peer [preauth]
Apr 29 06:56:59 example-server sshd[38254]: PAM 2 more authentication failures; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.183.209.132  user=root

我正在尝试腌制文件

with open('auth.log', 'rb') as logs:
    db = pickle.load(logs)

我收到错误消息：

TypeError: a bytes-like object is required, not 'str'

Answer 1

像您的日志文件的接缝不是由pickle模块创建的。

pickle模块实现用于对Python对象结构进行序列化和反序列化的二进制协议。 “ Pickling”是将Python对象层次结构转换为字节流的过程，而“ unpickling”是相反的操作[1]

因此，更好的方法可能是加载日志文件并将其解析为文本。 例如，您可以使用以下命令选择所有致命错误：

db = []
with open('auth.log', 'r') as logs:
    for log in logs: #for each line
        if 'fatal' in log:
            db.append(log)

您可以在此处找到有关日志文件解析的更多信息。