Generates a DeprecationWarning for the use of <>. Is it a hack to do this within Parser/tokenizer.c? Can't see any other immediate way to do it without generating an alternate token code for <> vs. !=:

tom@localhost:~/src/python-trunk$ ./python -3
warning: callable() not supported in 3.x
warning: callable() not supported in 3.x
warning: callable() not supported in 3.x
warning: callable() not supported in 3.x
warning: callable() not supported in 3.x
warning: callable() not supported in 3.x
warning: callable() not supported in 3.x
warning: callable() not supported in 3.x
Python 2.6a0 (trunk:56394M, Jul 15 2007, 21:00:33) 
[GCC 4.1.2 (Ubuntu 4.1.2-0ubuntu4)] on linux2
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>>> 1 <> 2
sys:1: DeprecationWarning: <> not supported in 3.x
True
>>> 1 != 2
True
>>>