Python中logging.warn和logging.warning有什么区别？

Question

位于http://docs.python.org/2/howto/logging.html的示例同时使用warn和warning。

Answer 1

自从Python 3.3以来，logging.warn已被弃用，您应该使用logging.warning。

在Python 3.3之前，logging.warn和logging.warning是相同的函数，但是logging.warn没有文档记录，如Python bug trackerhttp://bugs.python.org/issue13235中的一个封闭问题所述：

That's deliberate. The original code (before incorporation into Python) had warn(), which was kept for backward compatibility. The docs refer to warning() because that's what everyone is supposed to use. The method names map to the lower case of the appropriate logging level name.

保留logging.warn()是为了向后兼容，但是a deprecation warning was added。logging.warning()是每个人都应该使用的。

Answer 2

在Python 3.3之前，它们是相同的，但是warn被弃用：

>>> import logging
>>> logging.warn is logging.warning
True