* Enable retrieving data from Constant in python.

* Test on wide value range.

* complete the new backend construction/destruction API
* close each dlopen
* don't close libraries for now as it causes python to segfault

* updated to work with llvm 8.1 that tensorflow is built with

* sane extensions on the mac

* not doing rpath on apple

* apply style

* Make sure that generating pyapi does not throw errors due to directory structureor linenos

* Update basic.py

* Make sure that generating pyapi does not throw errors due to directory structureor linenos

* update docs

* one blank line instead of two

* blank line error resolve

* [Py] Use get_friendly_name for object names

* First version of nGraph Python API documentation pages.

* Remove use of (`) apostrophes since they generate Sphinx warnings.

* Fix submodule rendering in Sphinx PythonAPI docs

* Add updated index and conf py files

* Updated version of Python API doc.

* Better description for the autosummary

* Move runtime::Manager functionality into runtime::Backend

* Remove unused files

* remove obsolete function

- Set default input axes order.

* Update default paths in setup.py

* Update defaults arguments in tox

* remove obsolete

* change to use new Backend API

* rename parameter

* remove deprecated

* remove all legacy Backend API usage

remove deprecated files

* pull in changes from master

* fix GPU calls

* disable tests in convolution generator

* update per PR comments. Enable performance counter feature.

* update per PR comments

* fix build error

* fix conditionally compiled test :(

* Add python wrapper for nGraph Reduce operation.

- Add UT.

* Refactoring.

- Add UT case with default reduction on all axes.

* Extend `reduce` operation signature to also accept `Function` object.

- Add UT case.

* Fix formatting errors.

* Enable BatchNorm op

* Enable function call op

* Enable get output element op

* Remove the no longer supported alternative installation method for
python binding.

* Put back CMakeLists.txt as it is used by travis ci dockerfile.

* Remove python/CMakeLists.txt and update Travis CI

* unskipping passing gpu tests

* skipping failing gpu tests

* import pytest as needed

* fix style issues

* unskip passing test

* add additional skip reason, unable to compile

* Add/update Python wrappers for nGraph operations.

- NotEqual, OneHot, Power, Sqrt, Relu, Sign, Sin, Sinh, Tan, Subtract, Select, Tanh, Sum, Reduce,
Softmax, ReplaceSlice, Reverse
- Add UT for Relu, Sign, Sin, Sinh, Sqrt, Tan, Tanh,

* Add UT for cases when Cos and Sin are giving incorrect results.

* Alphabetically sorted imports.

* Small refactoring.

- Update docstrings
- Remove unnecesary auxiliary local variable.

* Update README to make it consistent with ngraph-neon

* Add instruction to clone pybind in README

* Address feedback on README

- Enable Padding op
- Supress multiline comment warning
- improve tox configuration

* [Py]Fix problem with double set layout

* Extend UT for coverage double set layout

* Add python wrappers for nGraph Cos, Cosh operations.

- Update docstrings.

* Enable auxiliary function running computation to accept multiple input nodes.

* Python wrapper for nGraph Dot function with UT.

* Update python wrappers for nGraph Exp and Equal operations.

- Update docstrings.
- Add UT for exp.

* Update python wrappers for nGraph Floor, Greater, GreaterEq, Less, LessEq operations.

- Update docstrings.
- Add UT for ng.floor.

* Update python wrapper for nGraph Log operation.

- Update docstring.
- Add UT.

* Update avg_pool signature to be consistent with ngraph AvgPool.

- Change parameters order and use more appropriate paramter names.
- Add docstring.

* Single file with test for pooling operations.

- Add test for avg_pool for 2D case.

* Code refactoring.

- Rename parameters to be more verbose.
- Change function return type, to enable general usage.

* Add UT for ceil, ceiling and abs.

* Update docstrings and type annotations.

* Add UT for broadcast operation.

* Add UT for concat operation.

- Minor change: add optional node name function parameter.

* Code formatting.

* UT for constant and convert operations.

- Move broadcast test to test_basic.py file.

* Update function signature.

- Update to be consistent with nGraph object API.

* Review fix.

- Update type annotations.
- Update docstring.
- Change local variables names to be consistent.

* Refactoring - put some commonly used functions into util.py.

* Update convolution operation signature.

- Add docstring
- Update to be consistent with respective nGraph object API.
- Formatting in UT.

* Fix import statements under py27.

* Correct quotation marks.

* Revert changes: use AxisSet as a return type.

* Review fix.

- Update parameter names to be consistent with respective parameters of nGraph object constructors.

* Review fix

- Set seed for random number generation to be repeatable.
- Use numpy.allclose.

* Change serialize routine

* Change serialize routine call for onnx

* Run clang-format on constant.cpp

* Update function type annotation.

* [Py] Update serialization

* Update docstring

* Add UT for serialize model

* Add test for ng.absolute

- remove unnecesary repetitive call to as_node

* Add Acos operation with UT.

- update docsrings
- refactor and parameterize unit tests

* Review refactoring fix.

* Review refactoring fix part 2.

* Add Asin and Atan nGraph operation wrappers.