o7 0.2.0

Python bindings for open62541 OPC UA library

pyo6 - Python bindings for open62541

prequesites

build requirements

pip install --upgrade pip setuptools build wheel numpy cython black mypy

build docs

pip install mkdocs mkdocs-gen-files mkdocstrings mkdocstrings-python mkdocs-material mkdocs-material-extensions

open62541 library

By default the module build will checkout open62541 into deps/open62541, build it, and install it into deps/open62541/build/install. The extension links against and bundles the local installation automatically.

open62541 may be installed system-wide (either from your package manager or by omitting -DCMAKE_INSTALL_PREFIX during cmake configuration). To make the module build link against the system library instead, use:

export O6_USE_SYSTEM_LIB=1

building o6-python module

python3 setup.py build

Optionally: To pin a specific open62541 version, run build_open62541 with --open62541-ref before the build, i.e.:

python3 setup.py build_open62541 --open62541-ref=v1.3.9 build

Optionally: To use a custom NodeSet2 XML for enum code generation, run src_gen with --nodeset before the build, i.e.:

python3 setup.py src_gen --nodeset path/to/custom_nodeset2.xml build

build + install for testing

pip install -v --break-system-packages --editable . --editable packages/o6-ns --no-build-isolation

Optional build configurations with --open62541-ref or --nodeset can be passed directly to the pip install command

pip install -v --break-system-packages --editable .  --no-build-isolation \
        --build-option="build_open62541 --open62541-ref=v1.3.9" \
        --build-option="src_gen --nodeset path/to/custom_nodeset2.xml"

valgrind tests

Additionally requires:

pip install pytest

Run with:

PYTHONMALLOC=malloc valgrind --tool=memcheck   --suppressions=/usr/lib/valgrind/python3.supp   --leak-check=full --track-origins=yes   python3 ./tests/test_client.py