onnxmltools (conda): ONNXMLTools enables you to convert models from different machine learning toolkits into ONNX. Currently the following toolkits are supported:    - Tensorflow (a wrapper of tf2onnx converter)   - scikit-learn (a wrapper of skl2onnx converter)   - Apple Core ML   - Spark ML (experimental)   - LightGBM   - libsvm   - XGBoost   - H2O   - CatBoost   - Pytorch has its builtin ONNX exporter.
Keywords: keras|machine-learning|onnx|python-library|scikit-learn