sum() requires number, not simply __add__
tjreedy at udel.edu
Fri Feb 24 22:58:11 CET 2012
On 2/24/2012 8:23 AM, Roy Smith wrote:
> In article<mailman.123.1330083762.3037.python-list at python.org>,
> Antoon Pardon<antoon.pardon at rece.vub.ac.be> wrote:
>>> Python doesn't try to prevent people from shooting themselves in the foot.
>> Yes it does! A simple example is None as a keyword to prevent
>> assignments to it.
> Hmmm. Just playing around with some bizarre things to do with None, and
> discovered this:
>>>> import sys as None
> doesn't give an error, but also doesn't assign the module to the symbol
> 'None'. Weird.
>>> import sys as None
SyntaxError: invalid syntax
Terry Jan Reedy
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