Prepend to logging message

[Peter Otten]

Joan Miller wrote:

> How to prepend anything to a logging message? Is possible to do it
> from the dictionary object (ExtraLog) or is there is that override
> process() [1]?
> 
> ------------------
> class ExtraLog(object):
> 
>     def __getitem__(self, name):
>         if name == 'foo':
>             result = 'testing'
>         return result
> 
>     def __iter__(self):
>         keys = ['foo',]
>         keys.extend(self.__dict__.keys())
>         return iter(keys)

format = "foo=%(foo)s " + logging.BASIC_FORMAT
logging.basicConfig(format=format)
logger = logging.LoggerAdapter(logging.getLogger('foo'), ExtraLog())
logger.error("yadda")

Is that what you want?

Peter