如何在Google App Engine中写入控制台？ [英] How do I write to the console in Google App Engine?

问题描述

通常当我编写代码时，我只想将小东西（主要是变量的当前值）输出到控制台。尽管我注意到Google App Engine Launcher确实有一个Log终端，但我没有看到Google App Engine的任何内容。有没有办法使用Google App Engine写信给上述终端或其他终端？

解决方案

您需要使用Python的标准 logging 模块。

 导入记录
 
 logging.info（hello）
 logging.debug（ hi）＃默认情况下不显示
  

要查看对 logging.debug（）在GoogleAppEngineLauncher Logs控制台中，必须先将标志 - dev_appserver_log_level = debug 添加到您的应用程序中。但是，请注意，您将看到来自App Engine SDK本身的大量调试噪声。

Often when I am coding I just like to print little things (mostly the current value of variables) out to console. I don't see anything like this for Google App Engine, although I note that the Google App Engine Launcher does have a Log terminal. Is there any way to write to said Terminal, or to some other terminal, using Google App Engine?

解决方案

You'll want to use the Python's standard logging module.

import logging

logging.info("hello")
logging.debug("hi") # this won't show up by default

To see calls to logging.debug() in the GoogleAppEngineLauncher Logs console, you have to first add the flag --dev_appserver_log_level=debug to your app. However, beware that you're going to see a lot of debug noise from the App Engine SDK itself. The full set of levels are:

• debug
• info
• warning
• error
• critical

You can add the flag by double clicking the app and then dropping it into the Extra Flags field.

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