On Sep 12, 2014, at 12:03 PM, Sean Dague <s...@dague.net> wrote:

> On 09/12/2014 11:33 AM, Mike Bayer wrote:
>> On Sep 12, 2014, at 11:24 AM, Sean Dague <s...@dague.net> wrote:
>>> On 09/12/2014 11:21 AM, Mike Bayer wrote:
>>>> On Sep 12, 2014, at 7:39 AM, Sean Dague <s...@dague.net> wrote:
>>>>> I assume you, gentle OpenStack developers, often find yourself in a hair
>>>>> tearing out moment of frustration about why local unit tests are doing
>>>>> completely insane things. The code that it is stack tracing on is no
>>>>> where to be found, and yet it fails.
>>>>> And then you realize.... that part of oslo doesn't exist any more....
>>>>> except there are still pyc files laying around. Gah!
>>>>> I've proposed the following to Nova and Python novaclient -
>>>>> https://review.openstack.org/#/c/121044/
>>>>> Which sets PYTHONDONTWRITEBYTECODE=true in the unit tests.
>>>> my VPN was down and I didn’t get this thread just now, but I am strongly 
>>>> -1 on this as added to tox.ini, my response is 
>>>> http://lists.openstack.org/pipermail/openstack-dev/2014-September/045873.html.
>>>> Short answer: if you want this feature, put PYTHONDONTWRITEBYTECODE into 
>>>> *your* environment.  Don’t force it on our automated tests or on my 
>>>> environment.   .pyc files make a difference in behavior, and if we banish 
>>>> them from all testing, then our code is never tested within the 
>>>> environment that it will normally be run in after shipment.
>>>> I’d far prefer a simple script added to tox.ini which deletes orphaned 
>>>> .pyc files only, if a change to tox.ini must be made.
>>> Your example in the other thread includes the random seed behavior,
>>> which is already addressed in new tox. So I don't see that as an issue.
>> Will these patches all be accompanied by corresponding PYTHONHASHSEED 
>> settings?   Also why don’t you want to place PYTHONDONTWRITEBYTECODE into 
>> your own environment?    I don’t want this flag on my machine.
> This was the set of tox changes that went in in August.

corresponding to PYTHONHASHSEED, right?  That whole thing is Python 3 only.

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