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Building the Python API for nGraph

Building nGraph Python Wheels

If you want to try a newer version of nGraph's Python API than is available from PyPI, you can build the latest version from source code. This process is very similar to what is outlined in our ngraph_build instructions with two important differences:

  1. You must specify: -DNGRAPH_PYTHON_BUILD_ENABLE=ON and -DNGRAPH_ONNX_IMPORT_ENABLE=ON when running cmake.

  2. Instead of running make, use the command make python_wheel.


    $ make python_wheel

After this procedure completes, the ngraph/build/python/dist directory should contain the Python packages of the version you cloned. For example, if you checked out and built 0.21 for Python 3.7, you might see something like:

$ ls python/dist/

Using a virtualenv (optional)

You may wish to use a virutualenv for your installation.

$ virtualenv -p $(which python3) venv
$ source venv/bin/activate
(venv) $

Installing the wheel

You may wish to use a virutualenv for your installation.

(venv) $ pip install ngraph/build/python/dist/ngraph_core-0.21.0rc0-cp37-cp37m-linux_x86_64.whl

Running tests

Unit tests require additional packages be installed:

(venv) $ cd ngraph/python
(venv) $ pip install -r test_requirements.txt

Then run tests:

(venv) $ pytest test/ngraph/
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