Message3450

You can work around this bug (in ImportFunction.__call__) by using positional 
rather than keyword arguments.  Pass {} for globals and locals in order to get 
to fromlist.

The function doesn't verify the number of positional arguments it's passed, 
either:

Jython trunk:
>>> __import__('sys', {}, {}, [], 1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
<module 'sys' (built-in)>

Python 2.5:
>>> __import__('sys', {}, {}, [], 1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: __import__() takes at most 5 arguments (14 given)