Added Serializable to all classes with a capnp write function

[rhyolight]

There is a problem with this PR, tests will fail with this error, but I'm not sure why:

============================================== ERRORS ==============================================
_________________________ ERROR collecting tests/unit/nupic/utils_test.py __________________________
tests/unit/nupic/utils_test.py:28: in <module>
    from nupic.utils import MovingAverage
src/nupic/utils.py:32: in <module>
    class MovingAverage(object, Serializable):
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/abc.py:87: in __new__
    cls = super(ABCMeta, mcls).__new__(mcls, name, bases, namespace)
E   TypeError: Error when calling the metaclass bases
E       Cannot create a consistent method resolution
E   order (MRO) for bases object, Serializable
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Interrupted: stopping after 1 failures !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
===================================== 1 error in 0.22 seconds ======================================

[lscheinkman]

The MovingAverage class does not implement the abstract method getSchema

[rhyolight]

@lscheinkman Even after that change, I still get the same error on MovingAverage.

[lscheinkman]

remove object from the mixin list. Serializable already inherits from object.

class MovingAverage(Serializable):
  """

[rhyolight]

Thanks @lscheinkman that was it.

[lscheinkman]

Should return MovingAverageProto from this import

from nupic.movingaverage_capnp import MovingAverageProto

[lscheinkman]

See my comment on https://github.com/numenta/nupic/pull/3710/files#r122292812

[rhyolight]

@lscheinkman ready

[lscheinkman]

👍 LGTM

[rhyolight]

investigating test failure 🤷‍♂️

[lscheinkman]

You need to add capnp conditionals for Windows. Something like this:

try:
   import capnp
 except ImportError:
   capnp = None
if capnp:
  from nupic.movingaverage_capnp import MovingAverageProto

[rhyolight]

@lscheinkman thanks for the help