[Python-Dev] KeyboardInterrupt on Windows

[Jeremy Hylton]

It's probably an unintended consequence of the "while 1" optimization
and the fast-next-opcode optimization.  "while 1" doesn't do a test at
runtime anymore.  And opcodes like JUMP_ABSOLUTE bypass the test for
pending exceptions.  The next result is that while 1: pass puts the
interpreter in a tight loop doing a JUMP_ABSOLUTE that goes nowhere. 
That is offset X has JUMP_ABSOLUTE X.

I'd be inclined to call this a bug, but I'm not sure how to fix it.

Jeremy