[Python-Dev] In-place operators

Guido van Rossum guido at python.org
Tue Mar 17 22:58:06 CET 2009

On Tue, Mar 17, 2009 at 2:54 PM, Benjamin Peterson <benjamin at python.org> wrote:
> 2009/3/17 Raymond Hettinger <python at rcn.com>:
>> Does anyone think it was not a good idea to put in-place operations in the
>> operator module?  For some objects, they don't map() as well as their
>> regular counterparts.  Some in-place operations rely on the interpreter to
>> take care of the actual assignment.   I've not yet seen good use cases for
>> operator.isub() for example.
> I thought the point of the operator module (unlike most modules) was
> to provide a comprehensive set of Python operators as functions for
> consistency even if there usefulness was questionable.

Right. Since Python doesn't have a notation like "operator +" for
turning operators into functions, the operator module provides this
functionality. Better safe than sorry.

--Guido van Rossum (home page: http://www.python.org/~guido/)

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