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POCollate output in Python logging MemoryHandler with SMTPHandler
 

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  1. POCollate output in Python logging MemoryHandler with SMTPHandler
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    <p>I have the logging module MemoryHandler set up to queue debug and error messages for the SMTPHandler target. What I want is for an email to be sent when the process errors that contains all debug statements up to that point (one per line). What I get instead is a separate email for every debug message.</p> <p>This seems like it should be trivial, and part of the logging package, but I can't find anything about it, no examples, nothing on Google.</p> <pre><code>log = logging.getLogger() log.setLevel(logging.DEBUG) debug_format = logging.Formatter("%(levelname)s at %(asctime)s in %(filename)s (line %(lineno)d):: %(message)s") # write errors to email error_mail_subject = "ERROR: Script error in %s on %s" % (sys.argv[0], os.uname()[1]) error_mail_handler = logging.handlers.SMTPHandler(SMTP_HOST, 'errors@'+os.uname()[1], [LOG_EMAIL], error_mail_subject) error_mail_handler.setLevel(logging.ERROR) #error_mail_handler.setLevel(logging.DEBUG) error_mail_handler.setFormatter(debug_format) # buffer debug messages so they can be sent with error emails memory_handler = logging.handlers.MemoryHandler(1024*10, logging.ERROR, error_mail_handler) memory_handler.setLevel(logging.DEBUG) # attach handlers log.addHandler(memory_handler) log.addHandler(error_mail_handler) </code></pre> <p>Related to this:</p> <p>Do I need to add the <code>error_mail_handler</code> to the logger explicitly if it is a target of <code>memory_handler</code> anyway? Should <code>error_mail_handler</code> be set to DEBUG or ERROR target? Does it even need a target when it is being fed from <code>memory_handler</code>?</p> <p>Would love to see some working code from anyone who has solved this problem.</p>
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