Python Microservices Development

Centralizing logs

Python comes with the logging package, which lets you stream logs to a variety of places including standard out, rotating log files, syslog, or a TCP or UDP socket.

There's even an SMTP backend. In the following example, the email_errors decorator will send an email every time an exception is happening in the decorated function. Note that the handler is doing a telnet session with the SMTP server to send the email, so if there's any issue during that session, you might get a second exception when the logger.exception() function is called:

 import logging from logging.handlers import SMTPHandler host = "smtp.example.com", 25 handler = SMTPHandler(mailhost=host, fromaddr="[e-mail]", toaddrs=["[e-mail]"], subject="Service ...