<p>要想用日志记录器输出类名,使用一种相当简单的pythonic方法,只需使用一个日志类。</p>
<pre><code>import logging
# Create a base class
class LoggingHandler:
def __init__(self, *args, **kwargs):
self.log = logging.getLogger(self.__class__.__name__)
# Create test class A that inherits the base class
class testclassa(LoggingHandler):
def testmethod1(self):
# call self.log.<log level> instead of logging.log.<log level>
self.log.error("error from test class A")
# Create test class B that inherits the base class
class testclassb(LoggingHandler):
def testmethod2(self):
# call self.log.<log level> instead of logging.log.<log level>
self.log.error("error from test class B")
testclassa().testmethod1()
testclassb().testmethod2()
</code></pre>
<p>通过如上所述命名记录器,<code>%(name)s</code>将是类的名称</p>
<h3>示例输出</h3>
<pre><code>$ python mymodule.py
[2016-02-03 07:12:25,624] ERROR [testclassa.testmethod1:29] error from test class A
[2016-02-03 07:12:25,624] ERROR [testclassb.testmethod2:36] error from test class B
</code></pre>
<h3>备选方案</h3>
<p>不继承</p>
<pre><code>import logging
def log(className):
return logging.getLogger(className)
class testclassa:
def testmethod1(self):
log(self.__class__.__name__).error("error from test class A")
class testclassb:
def testmethod2(self):
log(self.__class__.__name__).error("error from test class B")
testclassa().testmethod1()
testclassb().testmethod2()
</code></pre>