Message508

NotImplemented built-in is not implemented
nor supported:

Python 2.1 (#15, Apr 16 2001, 18:25:49) [MSC 32 bit 
(Intel)] on win32
Type "copyright", "credits" or "license" for more 
information.
>>> NotImplemented
NotImplemented
>>> class Z:
...  def __le__(self,o):
...   return NotImplemented
...
>>> z=Z()
>>> z<0
1

Jython 2.1b1 on java1.3.0 (JIT: null)
Type "copyright", "credits" or "license" for more 
information.
>>> NotImplemented
Traceback (innermost last):
  File "<console>", line 1, in ?
NameError: NotImplemented
>>>