[pypy-dev] x is y <=> id(x)==id(y)

Christian Tismer tismer at stackless.com
Fri May 10 11:26:33 CEST 2013

On 06.05.13 08:54, Armin Rigo wrote:
> Hi Simon,
> On Mon, May 6, 2013 at 12:48 AM, Simon Cross <hodgestar at gmail.com> wrote:
>> I was thinking along similar signs -- we could ask for things like "x
>> is ''" or "x is 3" to be added to PEP8 (I think any use of "is" with a
>> constant on one or more sides is likely suspect).
> That may be a good idea.  If the compiler emits SyntaxWarnings for
> these cases, then maybe it's all we need to cover most of the bad
> usages.

I highly appreciate this idea, too! Educating people to avoid
mis-use of "is" has probably more impact in the long term,
because the pep8 module is pretty often used as a measure of
code cleaning.

cheers - chris

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