Question

目前，我有一个这样定义的脚本：

import traceback
import logging
import time

logging.basicConfig(level=loggings.DEBUG)
logger=logging.getLogger(__name__)

if __name__ == '__main__':
    try:
        main_code()
    except Exception as e:
        logger.debug(traceback.format_exc())
        error = traceback.format_exc()
        with smtplib.SMTP("mailhub.global.company.com") as mailServer:
            msg = MIMEMultipart('related')
            msg['Subject'] = Header(u'Test', 'utf-8')
            msg['X-Priority'] = '2'
            body = "Delivery Failure, the following exception occurred:\n\n" + str(error)
            msg.attach(MIMEText(body, 'plain'))
            mailServer.sendmail("email@gmail.com", ["email@gmail.com"], msg.as_string()) 
            mailServer.quit()
        print("Exception occurred- delivery failure email sent")

从某种意义上说，这是完美的，如果有错误，我会收到一封带有追溯信息的电子邮件。

在失败的情况下，我尝试向代码添加“重试”，因此它尝试5次，中间间隔5秒，如下所示：

if __name__ == '__main__':
    for attempt in range(5):
        try:
            main_code()
        except Exception as e:
            print("Error occurred, retrying in 5 seconds!")
            time.sleep(5)
            continue
        else:
            break
    else:
        logger.debug(traceback.format_exc())
        error = traceback.format_exc()
        with smtplib.SMTP("mailhub.global.company.com") as mailServer:
            msg = MIMEMultipart('related')
            msg['Subject'] = Header(u'Test', 'utf-8')
            msg['X-Priority'] = '2'
            body = "Delivery Failure, the following exception occurred:\n\n" + str(error)
            msg.attach(MIMEText(body, 'plain'))
            mailServer.sendmail("email@gmail.com", ["email@gmail.com"], msg.as_string()) 
            mailServer.quit()
        print("Exception occurred- delivery failure email sent")

但是，由于某种原因，当我现在收到传递失败的电子邮件时，它只表示：Delivery Failure, the following exception occurred: NoneType: None

有什么主意如何使回溯到发送的电子邮件中的错误？

Answer 1

当您离开except块时，该异常将被“清理”（已销毁），以便在您到达最后一个{{1}时，traceback模块中的函数无法看到它}块。您可能想将else移到error = traceback.format_exc()块中（并将except传递到error）。

添加“重试”使我丢失了追溯

1 个答案: