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TensorRT Python Bindings

Installation

Download pybind11

Create a directory for external sources and download pybind11 into it.

export EXT_PATH=~/external

mkdir -p $EXT_PATH && cd $EXT_PATH
git clone https://github.com/pybind/pybind11.git

Download Python headers

Add Main Headers

  1. Get the source code from the official python sources
  2. Copy the contents of the Include/ directory into $EXT_PATH/pythonX.Y/include/ directory.

Add PyConfig.h

  1. Download the deb package for the desired platform from here. Typical plaforms include x86_64 (amd64), aarch64 (arm64), and ppc64le (ppc64el)
  2. Unpack the debian with ar x <libpython...>.deb
  3. Unpack the contained data.tar.xz with tar -xvf
  4. Copy the ./usr/include/<platform>/ directory into the $$EXT_PATH/pythonX.Y/include/ directory here. It should only contain a single file - pyconfig.h

Build Python bindings

Use build.sh to generate the installable wheels for intended python version and target architecture.

Example: for python 3.8 x86_64 wheel,

cd $TRT_OSSPATH/python
PYTHON_MAJOR_VERSION=3 PYTHON_MINOR_VERSION=8 TARGET=x86_64 ./build.sh

Install the python wheel

python3 -m pip install build/dist/tensorrt-*.whl