Hi Matt:

In message
<1546264300.26.0.619166655035.issue2551017@roundup.psfhosted.org>,
Matt writes:
>New submission from Matt:
>Hi I am receiving an error when I am attempting to configure the new
>logging with rotation.

Have you tried with logging.ini configured but no -L on the command
line?  I.E. same config as #1 and #2 below but no -L on the command
line.

>I have configured the settings as follows:
>
>1) Added entry to config.ini: config = logs\logging.ini
>2) Created the above file in my logs folder exactly as on the web page:
> [...]
>and am getting the following error on service startup. I am running on
>windows.
>
>The instance's SvcRun() method failed 
>Traceback (most recent call last):
>  File "C:\Python27\lib\site-packages\win32\lib\win32serviceutil.py",
>line 839, in SvcRun
>    self.SvcDoRun()
>  File
> [...]
>  File "C:\Python27\lib\site-packages\roundup\configuration.py", line
>1609, in init_logging
>    logging.config.fileConfig(_file)
>  File "C:\Python27\lib\logging\config.py", line 86, in fileConfig
>    _install_loggers(cp, handlers, disable_existing_loggers)
>  File "C:\Python27\lib\logging\config.py", line 190, in _install_loggers
>    llist.remove("root")
>ValueError: list.remove(x): x not in list 
>%2: %3
>
>If i comment out the line in the config.ini config = logs\logging.ini
>then the service starts successfully.

If it works without -L but with logging.ini configured, let me know
bwcuse what I suggest below is unlikley to work.

If it fails without -L, use the example below as your logging.ini.

====
[loggers]
keys=root,roundup,roundup.http

[logger_root]
#DEBUG, INFO, WARNING, ERROR, CRITICAL
#also for root only NOTSET (all)
level=DEBUG
handlers=basic

[logger_roundup]
#DEBUG, INFO, WARNING, ERROR, CRITICAL
#also for root only NOTSET (all)
level=DEBUG
handlers=basic
qualname=roundup
propagate=0

[logger_roundup.http]
level=INFO
handlers=rotate_weblog
qualname=roundup.http
propagate=0

[handlers]
keys=basic,rotate_weblog

[handler_rotate_weblog]
class=logging.handlers.RotatingFileHandler
args=('httpd.log','a', 512000, 2)
formatter=plain

[handler_basic]
class=StreamHandler
args=(sys.stderr,)
formatter=plain

[formatters]
keys=plain

[formatter_plain]
format=%(message)s
====

(Note I am writing this from memory, so it may need a little work.)

This adds root and roundup logger. Since the traceback includes
'llist.remove("root")', supplying a root logger may fix it. Also since
you are using roundup.http I wonder if a roundup logger is required as
well to complete the heirarchy.

Try running roundup by hand from a cmd window (not as a service) and
see if it the modified logging.ini works. If it does, we probably need
to change the basic handler to log to a rotating file or something
rather than stderr.

Let me know how this works.