Bug Report

I have successfully install perspective-python package with all dependencies (NumPy and PyArrow)
Then I get the warning message when import perspective

CRITICAL:root:Failed to import C++ bindings for Perspective probably as it could not be built for your architecture.
You can still use PerspectiveWidget in client mode using JupyterLab.

So I can't use Table and PerspectiveManager classes.
Command from perspective import Table, PerspectiveManager gives the result:

File "", line 1, in
ImportError: cannot import name 'Table' from 'perspective' (/home/akulakov/miniconda3/envs/finos/lib/python3.7/site-packages/perspective/init.py)

Steps to Reproduce:

1. conda create -n finos python=3.7.0
2. conda activate finos
3. python -m pip install numpy
4. python -m pip install pyarrow==0.15.1
5. python -m pip install perspective-python
   No errors at this time
6. exec python: from perspective import Table, PerspectiveManager

Expected Result:

import packages with no errors

Environment:

OS: Ubuntu 19.10
Virtualenv: conda
Python: 3.7.0