>> On a slightly tangential note, what do you think of the idea of
>> library code including info or debug level logging? In effect,
>> tracing and diagnostic code built in and available simply by changing
>> the logging level?
Vinay> That's how it works right now. You get info() and debug()
Vinay> messages sent via calls in library code, just by changing the
Vinay> level of (say) the root logger.
There can be performance implications if you log heavily. I don't know how
the code is organized, but functionally these two calls are equivalent:
>>> logging.error("error 1 2 3 %s" % "yup")
ERROR:root:error 1 2 3 yup
>>> logging.error("error 1 2 3 %s", "yup")
ERROR:root:error 1 2 3 yup
The second form should be preferred in library code as long as the format
string expansion is deferred until after the test is made to emit the
message.
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