python logging writes an empty file

[Jean-Michel Pichavant]

Ovidiu Deac wrote:
> Then I tried this:
>     file = logging.FileHandler(logFileBasename, 'w')
>     file.setLevel(logging.INFO)
>     # set a format which is simpler for console use
>     formatter = logging.Formatter('%(asctime)s %(name)-12s
> %(levelname)-8s %(message)s',)
>     # tell the handler to use this format
>     file.setFormatter(formatter)
>     # add the handler to the root logger
>     logging.getLogger('').addHandler(file)
>     logging.getLogger('')
>
> ...which also leaves my output file EMPTY.
>
> I'm out of ideas. Can anybody help me with this?
>
> Thanks in advance!
> ovidiu
>   
You set le level of your handler, but did not set the level of the 
logger itself.
Replace file.setLevel(logging.INFO) by 
logging.getLogger().setLevel(logging.INFO)

Log events are matched versus the logger level 1st, then the handler 
level (if applicable). Most of the time you don't need to tune your 
handler levels.

JM