[Python-Dev] Strange behavior in Python 2.5a0 (trunk) --- possible error in AST?

Travis E. Oliphant oliphant.travis at ieee.org
Mon Mar 13 09:28:56 CET 2006

I'm seeing strange behavior in the Python 2.5a0 trunk that is causing 
the tests for numpy to fail.  Apparently obj[...] = 1 is not calling 

Here is a minimal example to show the error.  Does anyone else see this?

class temp(object):
        def __setitem__(self, obj, v):
            print obj, v

mine = temp()
mine[...] = 1
mine[0] = 1

Output from Python 2.4.2:
Ellipsis 1
0 1

Output from Python 2.5a0:
0 1

In other words, the first line does nothing in Python 2.5a0.

Does anybody else see this?



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