On 06/23/2015 07:31 PM, Robert Collins wrote:
> You may have seen your requirements update proposals start to include
> things like:
> MySQL-python;python_version=='2.7'
>
> like in
> https://review.openstack.org/#/c/194325/
> https://review.openstack.org/#/c/194325/3/test-requirements.txt
>
> This is programmatic annotation of the Python versions that we need
> these requirements for -- and the version(s) that we know works.
>
> The syntax is PEP-426 environment markers:
> https://www.python.org/dev/peps/pep-0426/#environment-markers
>
> and we document it in pbr and openstack/requirements - this email is
> just a heads for folk that aren't tracking those repositories.
>
> To work with these, modern versions of pip (6 is the minimum) and
> setuptools (I recommend the latest version always) and pbr (1.2.0) are
> needed. Running with older versions is likely to fail - but these
> tools are very backwards compatible.
>
> The introduction of this is a necessary step to be able to calculate a
> frozen set of requirements for each Python version we test on - if we
> can't install all of global-requirements.txt on e.g. 2.7, then we
> can't see what versions would be installed to calculate the delta for
> the next upgrade. Calculating that frozen set of requirements is a
> necessary condition to remove the variance of upstream releases from
> impacting CI jobs and causing wedges.
>
> We haven't (yet) introduced this machine readable data to stable/kilo,
> but are likely to do so later this cycle, once we have the tooling in
> place and locked in for constraints everywhere in master.
>
> -Rob
>
All of these proposals are now failing the requirements check jobs, so
requirements updates are currently blocked.
What's the resolution here?
-Sean
--
Sean Dague
http://dague.net
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