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POlogging with filters
 

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    <p>I'm using Logging (<code>import logging</code>) to log messages.</p> <p>Within 1 single module, I am logging messages at the debug level <code>my_logger.debug('msg')</code>; </p> <p>Some of these debug messages come from <code>function_a()</code> and others from <code>function_b()</code>; I'd like to be able to enable/disable logging based on whether they come from a or from b; </p> <p>I'm guessing that I have to use Logging's filtering mechanism. </p> <p>Can someone show me how the code below would need to be instrumented to do what I want?</p> <pre><code>import logging logger= logging.getLogger( "module_name" ) def function_a( ... ): logger.debug( "a message" ) def function_b( ... ): logger.debug( "another message" ) if __name__ == "__main__": logging.basicConfig( stream=sys.stderr, level=logging.DEBUG ) #don't want function_a()'s noise -&gt; .... #somehow filter-out function_a's logging function_a() #don't want function_b()'s noise -&gt; .... #somehow filter-out function_b's logging function_b() </code></pre> <p>If I scaled this simple example to more modules and more funcs per module, I'd be concerned about lots of loggers; </p> <p>Can I keep it down to 1 logger per module? Note that the log messages are "structured", i.e. if the function(s) logging it are doing some parsing work, they all contain a prefix <code>logger.debug("parsing: xxx")</code> - can I somehow with a single line just shut-off all "parsing" messages (regardless of the module/function emitting the message?)</p>
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