[IPython-dev] Quieting the kernel, logging strategy.

Brian Granger ellisonbg at gmail.com
Wed Dec 8 10:26:26 EST 2010


2010/12/7 Omar Andrés Zapata Mesa <andresete.chaos at gmail.com>

> Hi all.
> I have ready a prototype for logging, see my branch
> https://github.com/omazapa/ipython/tree/terminal-logging
> iplogging support beautiful colors in the output, using the
> module IPython.utils.coloransi
> see some snapshots
> http://gfifdev.udea.edu.co/IpythonLogging.png
> of a simple code
>

I am a bit hesitant of having ansi colored log files as these will not work
on Windows.  Minimally, this needs to be optional.

Cheers,

Brian


>
> -------------------------------------------------------------------------------------------
> from iplogging import IpLogging
> if __name__ == "__main__":
>     IpLogging.debug("this is a  ipython's debug message")
>     IpLogging.warning("this is a  ipython's warning message")
>     IpLogging.error("this is a  ipython's error message")
>     IpLogging.info("this is a  ipython's info message")
>
> ------------------------------------------------------------------------------------------
>
> and it is now implemented in ipkernel, see the snapshot
> http://gfifdev.udea.edu.co/IpythonLogging1.png<http://gfifdev.udea.edu.co/IpythonLogging.png>
>
> Please feel free for suggestions
>
>
>
> 2010/12/6 Fernando Perez <fperez.net at gmail.com>
>
> Hi folks,
>>
>> I just had a chat with Omar, who has some spare cycles coming up and
>> is going to complete the work he prototyped during the gsoc effort.
>> This will mean producing a terminal-based, 2-process version of
>> IPython, which can be used for talking to existing kernels or with its
>> own self-started one.
>>
>> Unfortunately right now the self-starting approach simply won't work,
>> because we've crammed the kernel full of direct print statements to
>> log message info.  This makes it impossible to use the terminal where
>> the kernel is running, as it floods with messages.
>>
>> I suggested to Omar that he start, as step 1 of his work, with
>> quieting out the kernel, but I'd like to ping everyone with this so
>> that Omar can implement something that will last.  I remember in Min's
>> newparallel branch we already have a proper log listener, and we'd
>> talked in the past about this a little, but my memory fails me.
>>
>> So, should all print statements be replaced with calls to a
>> logging.logger object for now?  Min, how was your code logging its
>> messages out?
>>
>> This isn't particularly difficult work, I just want to make sure we
>> use the same strategy everywhere, and right now I don't have all the
>> pieces of the puzzle in my mental cache...
>>
>> Thanks!
>>
>> f
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>>
>
>
>
> --
> Omar Andres Zapata Mesa
> Head Developer Phenomenology of Fundamental Interactions Group (Gfif)
> http://gfif.udea.edu.co
> Division of computer science Gfif Developers (Gfif Dev)
> http://gfifdev.udea.edu.co
> Systems Engineering Student
> Universidad de Antioquia At Medellin - Colombia
> Usuario Linux  #490962
>
>
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>
>


-- 
Brian E. Granger, Ph.D.
Assistant Professor of Physics
Cal Poly State University, San Luis Obispo
bgranger at calpoly.edu
ellisonbg at gmail.com
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