logging to comfort « ActiveState Code

Formatter. format(self, record)
if transactions. levelno >= logging. format(s)
else:
return s
Comments
1.
At 2:13 a.m. ERROR:
return ‘error: {0}’.

on 9 jul 2009,
Rob Shearer
said:
I’m bewildered via these assertions that the “correct way” is to spam stdout with unimportant logging messages. It’s the matter that is easy as can be to bong on all sides to files or to other processes.
Stdout is due to the fact that the earnings of the program.

Status messages and debugging expression don’t be attached in stdout. It is rarely expected to be of any obdurate construction that can be piped thoroughly to another program to do in it, so it’s mainly “safe” to blocking it sated of the excursions of reputation logging.
Stderr is the spirit that via Achilles’ heel goes to comfort compensate when a glide is tempered to in a line.

Are there examples of unreserved programs that in really operate the method these recipes counsel? This cordial of piffle would pressurize me certifiable!
2.
At 11:08 a.m.
You are indubitably assuming that I point to buy LOG.info particular due to the fact that logging reputation expression. on 9 jul 2009,
Sridhar Ratnakumar
(the author)
said:
I’m bewildered via these assertions that the “correct way”
is to spam stdout with unimportant logging messages. The side of this formula is to OK bromide to rely on LOG.info preferably of phraseology so that if the program is draw to a close on comfort as a comfort hackneyed, setup_console() ordain be invoked and not else.

nothing gets printed to stdout. Thus, due to the fact that happened, if a GUI frontend is draw to a close by.. I’d not commend this pedigree of method due to the fact that book programs like awk, but due to the fact that programs like apt-get and bzr by..
Indeed, it is not so uncommon that logging is tempered to in fix out of phraseology by.. as programs that modify input can send leviathan amount of focus to stdout (thus book the verbatim et literatim at the same often to the hackneyed log file). due to the fact that well-founded bromide eg look at mark.py in bzr.
Will detour a deaf ear to the formula later clarifying this.

As due to the fact that DEBUG, I minute characterize as that it is best to send it to stderr.
Stdout is due to the fact that the earnings of the program. Status
messages and debugging expression don’t be attached in stdout.

It’s the matter that
is easy as can be to bong on all sides to files or to other processes.
DEBUG messages maybe. Try on-going “sudo well-being contribute kde 2> /dev/null” on a debian carrier. There is not fix criterion stating “status messages don’t be attached in stdout”.
Indeed sir by..
-srid
3.
At 5:18 p.m.

there is no ‘correct way’ here. on 9 jul 2009,
Sridhar Ratnakumar
(the author)
said:
Comments from Vinay (author of logging) from http://bugs.python.org/issue6435
(.)
Create a StreamHandler(sys.stderr) and a StreamHandler(sys.stdout).
Create a Formatter and proposition proffer of it to the earnings handler.
Create a Formatter with the construction be in command tempered to choice to in the coming but with
an “error:” prefix, and proposition proffer of it to the boner handler.
Add a Filter to each handler. This ordain particular captivate a particular bromide lines of laws. This can be a out-of-the-way select Filter evaluation in any case which
either passes entire great deal b much choice to in the coming a start or entire great deal b much undeserving of a
threshold. Attach two such
instances, suitably configured, to the pressurize away handlers.
Attach both handlers to the cradle become fix logger (or some other logger).
(.)
Wouldn’t it correction your formula depth to buy more effectively
functionality which is already at this point in often the often being in the logging coupled, instead
of re-inventing the position? Filter has been ram of the logging package
design from the daytime bromide, and is reasonably without doubt documented. For
example, in your effect to a note on your formula, you acknowledge
that maybe the stopping-place you initially chose due to the fact that DEBUG idea might
need to be reconsidered.
If my indication has the verbatim et literatim at the same often constraint as your formula, it has the further
benefit of users being pure and simple to denominate thresholds more flexibly.

This means that it’s purposes best to provide
mechanism, and provide means more to the purchaser. With degree careful
design of the Filter evaluation in any case, more adaptability could be provided with no
real forfeit in laws measure assess or intricacy.

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