[docs] [issue15997] NotImplemented needs to be documented
Martin v. Löwis
report at bugs.python.org
Fri Sep 21 13:37:38 CEST 2012
Martin v. Löwis added the comment:
The main point is: it depends on the operation. NotImplemented is a way to signal that an operation is not implemented. It can be used for whatever you want to use it for. You can design to call an operation "foo", and, if NotImplemented is returned, call "bar" instead.
If you want to know how a specific operation performs its fallback, you have to look in the documentation of the specific operation.
As an example for a method where some other fallback is used, see
Python tracker <report at bugs.python.org>
More information about the docs