C++ python type converstion

[aamir-gmail]

TypeError: Unable to convert function return value to a Python type! The signature was
(self: htm.bindings.encoders.RDSE, arg0: float) -> htm::SparseDistributedRepresentation.

I am running anaconda 3.7 ( I complied from sources ) by running setup.py , I am running ubuntu 20.04 LTS x64

here is the code

parameter1 = RDSE_Parameters()
parameter1.size = 160
parameter1.sparsity = 0.02
parameter1.resolution = 0.66
rsc1 = RDSE(parameter1)
for val in df['feature_class'].values.astype(np.int32):
rsc1.encode(val)
where val is integer 32 of ranhe 1 to 3

[breznak]

Thanks @aamir-gmail for the report, it means you're missing an import in python, a quick fix is
from htm.bindings.sdr import SDR in your code.

@dkeeney I don't know how to fix this properly in pybind11. In the encoders' modules we need to import pythonic SDR, which is also a pybind module (and only a .cpp).

Currently, the users have to do

from htm.bindings.encoders import RDSE
from htm.bindings.sdr import SDR

It's an OK to request that, ideally we'd import the SDR as needed internally.
So simple

from ..... import RDSE
myenc = RDSE(....)

would work.

[breznak]

Or a workaround would be to create py/htm/encoders/__init__.py where we import all the encoders (py-only & pybind11) + all the needed "dependencies" (SDR,..)
Users would call

import py.htm.encoders

[aamir-gmail]

thank you it works, however, it would be better is this was done internally. Mostly on account of people like me posting the obvious.

[dkeeney]

I noticed that py/htm/__init__.py imports the sdr module. Does this resolve the issue?
Do we also need to do the same thing in bindings/py/packaging/src/htm ?

[breznak]

I noticed that py/htm/init.py imports the sdr module. Does this resolve the issue?

I guess you'd have to do import py.htm.* to get that(?)