logging module and doctest

Peter Otten __peter__ at web.de
Thu Jan 25 12:05:39 CET 2007

Peter Otten wrote:

> Gary Jefferson wrote:
>> I've written a logging.filter and would like to use doctest on it
>> (using a StreamHandler for stdout), but this doesn't seem possible.
>> Output from the logger seems to disappear (running the doctest strings
>> through the interpreter as-is yields expected results).  I assume this
>> is because doctest does something with logging.
> It redirects stdout to a StringIO subclass to capture the output.
>> Is there any way to make these work together?
> Using the StreamHandler with something like
> class WrapStdOut(object):
>     def __getattr__(self, name):
>         return getattr(sys.stdout, name)
> instead of sys.stdout directly should work.

Or create the StreamHandler inside your doctest where sys.stdout is already


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