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From Thomas Rampelberg <tho...@saunter.org>
Subject Re: Python bindings are changing!
Date Sat, 02 Aug 2014 19:12:26 GMT
You'll want to match the python bindings to your mesos version as the
functionality is coming from libmesos itself. It might work to use
0.19 with a 0.20 mesos (or visa versa), but there be dragons =)


On Fri, Aug 1, 2014 at 1:30 PM, Jie Yu <yujie.jay@gmail.com> wrote:
> Thomas,
>
> Thank you for the heads-up. One question: what if mesos and python binding
> have different versions? For example, is it ok to use a 0.19.0 python
> binding and having a 0.20.0 mesos? Same question for the reverse.
>
> - Jie
>
>
> On Fri, Aug 1, 2014 at 9:37 AM, Thomas Rampelberg <thomas@saunter.org>
> wrote:
>
>> - What problem are we trying to solve?
>>
>> Currently, the python bindings group protobufs, stub implementations
>> and compiled code into a single python package that cannot be
>> distributed easily. This forces python projects using mesos to copy
>> protobufs around and forces a onerous dependency on anyone who would
>> like to do a pure python binding.
>>
>> - How was this problem solved?
>>
>> The current python package has been split into two separate packages:
>>
>> - mesos.interface (stub implementations and protobufs)
>> - mesos.native (old _mesos module)
>>
>> These are python meta-packages and can be installed as separate
>> pieces. The `mesos.interface` package will be hosted on pypi and can
>> be installed via. easy_install and pip.
>>
>> See https://issues.apache.org/jira/browse/MESOS-857 and
>> https://reviews.apache.org/r/23224/.
>>
>> - Why should I care?
>>
>> These changes are not backwards compatible. With 0.20.0 you will need
>> to change how you use the python bindings. Here's a quick overview:
>>
>>     mesos.Scheduler -> mesos.interface.Scheduler
>>     mesos.mesos_pb2 -> mesos.interface.mesos_pb2
>>     mesos.MesosSchedulerDriver -> mesos.native.MesosSchedulerDriver
>>
>> For more details, you can take a look at the examples in
>> `src/examples/python".
>>

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