print line number and source filename

[Stephen Hansen]

On 6/22/10 10:26 AM, Shashwat Anand wrote:
> ---- begin -----
> import logging
> logging.basicConfig(level=logging.DEBUG,format="%(asctime)s"
> "%(levelname)-5.5s [%(name)s %(module)s:%(funcName)s:%(lineno)d]"
> "%(message)s")
> 
> def run():
>    x = 5
>    logging.debug("X = %d" % x)
> 
> run()
> ----- end -----
> 
> You can probably use string default concatenation feature of python.
> Anyway, am just nitpicking. Loved your example, as I was unaware of
> logging module.

As a sort of personal policy, I never use string concatenation. I do not
advocate this position or advise that others should follow it, but in my
experience-- for me-- it does not scale. I find I often want to go back
and modify or enhance an output with new data, and string concatenation
ends up becoming cumbersome after awhile, and so I always use format
strings so I don't have to rewrite the line to convert from + to % later.

(And in a couple years when I can migrate to Py3, I'll start using
.format())

-- 

   Stephen Hansen
   ... Also: Ixokai
   ... Mail: me+list/python (AT) ixokai (DOT) io
   ... Blog: http://meh.ixokai.io/

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