No handlers could be found for logger

[purpleidea]

BPO	6633
Nosy	@vsajip

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = 'https://github.com/vsajip'
closed_at = <Date 2009-08-05.19:45:54.914>
created_at = <Date 2009-08-03.17:04:09.809>
labels = ['library']
title = 'No handlers could be found for logger'
updated_at = <Date 2009-08-05.21:07:47.390>
user = 'https://bugs.python.org/purpleidea'

bugs.python.org fields:

activity = <Date 2009-08-05.21:07:47.390>
actor = 'purpleidea'
assignee = 'vinay.sajip'
closed = True
closed_date = <Date 2009-08-05.19:45:54.914>
closer = 'vinay.sajip'
components = ['Library (Lib)']
creation = <Date 2009-08-03.17:04:09.809>
creator = 'purpleidea'
dependencies = []
files = []
hgrepos = []
issue_num = 6633
keywords = []
message_count = 3.0
messages = ['91231', '91329', '91336']
nosy_count = 2.0
nosy_names = ['vinay.sajip', 'purpleidea']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue6633'
versions = ['Python 2.5']

[purpleidea]

I was trying to suppress the error message as shown in the title, when I
found out (by searching through the source) that there is a NullHandler
for precisely this purpose.

http://svn.python.org/view/python/trunk/Lib/logging/__init__.py?r1=66211&r2=67511

do you think that:

1. this could be documented maybe here (
   http://docs.python.org/library/logging.html#handler-objects ) i suppose?
   and:
2. this null handler doesn't seem to exist in:
   Python 2.5.2 (r252:60911, Oct 5 2008, 19:24:49)
   [GCC 4.3.2] on linux2
   is this likely to get backported to 2.5? at the moment i've just
   included the simple NullHandler class into my code.
3. also not my business really, but should it belong in the handlers.py
   file?

thanks for all your hard work, i hope the comments are useful!

[vsajip]

1. It's not appropriate to document NullHandler at the point you
   describe, as that's the API for Handlers. However, it is documented at

http://docs.python.org/library/logging.html#configuring-logging-for-a-library

I will check that NullHandler is added to documentation where the
available handler classes are listed.

2. Unlikely to be backported to 2.5, as it's a new feature (2.5
   documentation tells how to create the class in user's own code).

3. NullHandler was placed in the main logging package along with the
   other "elementary" handlers which are likely to be of most general use -
   the handlers.py module is intended for more specialised handlers.

[purpleidea]

very well,
i didn't notice the
http://docs.python.org/library/logging.html#configuring-logging-for-a-library
and i thank you for your time and efforts!

cheers,
_J