[issue1436] logging.config.fileConfig, NameError: name 'RotatingFileHandler' is not defined
Marc Abramowitz msabr...@gmail.com added the comment: I just ran into this issue with Python 2.5 (doesn't seem to be an issue in = 2.6?) and for the benefit of anyone else, I'm copying the answer from `Vinay's Google Group post http://groups.google.com/group/comp.lang.python/browse_thread/thread/21be57fae7e9381a` into this bug, in case the Google group goes away or the URL changes. The values in the config file are interpreted in the context of the logging module's namespace. Hence, one way of achieving what you want is putting any custom handlers in a module of your own, and providing a binding in the logging module's namespace. For example: assuming your DBHandler is defined in a module customhandlers, you could do this somewhere in your code, before loading the configuration: import logging import customhandlers # Use your own module name here logging.custhandlers = customhandlers # Bind your module to custhandlers in logging and then your logging configuration can refer to custhandlers.DBHandler. Of course I merely used custhandlers and customhandlers to show how you can bind to an arbitrary name. -- nosy: +Marc.Abramowitz ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1436 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1436] logging.config.fileConfig, NameError: name 'RotatingFileHandler' is not defined
Marc Abramowitz msabr...@gmail.com added the comment: Or for a practical example, here's how I used the above technique to solve this problem in web2py: diff --git a/gluon/main.py b/gluon/main.py index 57bf647..2f69c6b 100644 --- a/gluon/main.py +++ b/gluon/main.py @@ -68,6 +68,13 @@ create_missing_folders() # set up logging for subsequent imports import logging import logging.config + +# This needed to prevent exception on Python 2.5: +# NameError: name 'gluon' is not defined +# See http://bugs.python.org/issue1436 +import gluon.messageboxhandler +logging.gluon = gluon + logpath = abspath(logging.conf) if os.path.exists(logpath): logging.config.fileConfig(abspath(logging.conf)) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1436 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1436] logging.config.fileConfig, NameError: name 'RotatingFileHandler' is not defined
sebastian added the comment: thank you very much... but: [...] the class and arguments are evaluated using the logging package's namespace. [...] does this mean, it is not possible to use user-defined handlers, naturally residing outside python's class library (and logging package), when applying fileConfig()? __ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue1436 __ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1436] logging.config.fileConfig, NameError: name 'RotatingFileHandler' is not defined
Vinay Sajip added the comment: No, it doesn't. See this post: http://groups.google.com/group/comp.lang.python/browse_thread/thread/21be57fae7e9381a __ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue1436 __ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1436] logging.config.fileConfig, NameError: name 'RotatingFileHandler' is not defined
Christian Heimes added the comment: confirmed The problem is in logging.config._install_handlers(cp, formatters). The code is usin klass = eval(klass, vars(logging)) args = eval(args, vars(logging)) to get the logger class from the logging module. -- nosy: +tiran versions: +Python 2.6, Python 3.0 __ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue1436 __ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1436] logging.config.fileConfig, NameError: name 'RotatingFileHandler' is not defined
Changes by Christian Heimes: -- assignee: - vsajip nosy: +vsajip priority: - normal __ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue1436 __ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1436] logging.config.fileConfig, NameError: name 'RotatingFileHandler' is not defined
Guido van Rossum added the comment: Somebody please propose a patch! -- nosy: +gvanrossum __ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue1436 __ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1436] logging.config.fileConfig, NameError: name 'RotatingFileHandler' is not defined
Vinay Sajip added the comment: This is not a bug: I think you are missing something. In the first example (interactive usage), the lines import logging and import logging.handlers do not magically introduce RotatingFileHandler into your interactive session's globals. To do this, you would have to say from logging.handlers import RotatingFileHandler. An analogous example unrelated to logging: ActivePython 2.4.3 Build 12 (ActiveState Software Inc.) based on Python 2.4.3 (#69, Apr 11 2006, 15:32:42) [MSC v.1310 32 bit (Intel)] on win32 Type help, copyright, credits or license for more information. import httplib HTTP Traceback (most recent call last): File stdin, line 1, in ? NameError: name 'HTTP' is not defined httplib.HTTP class httplib.HTTP at 0x00A759F0 In the second example (using fileConfig), the documentation in http://docs.python.org/lib/logging-config-fileformat.html clearly states that the class and arguments are evaluated using the logging package's namespace. This means that for a handler defined in the logging package itself (such as StreamHandler) no qualification is required, but for a handler defined in the handlers subpackage, you should specify handlers.RotatingFileHandler in the configuration file rather than RotatingFileHandler or logging.handlers.RotatingFileHandler. __ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue1436 __ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1436] logging.config.fileConfig, NameError: name 'RotatingFileHandler' is not defined
Changes by Vinay Sajip: -- resolution: - invalid status: open - closed __ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue1436 __ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
