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🔗 https://chrizog.github.io/someipy/
someipy is a Python library implementing the SOME/IP protocol, including the SOME/IP SD (Service Discovery) in Python. It's perfectly suited for fast prototyping of applications that need to provide (server) or use (client) SOME/IP services from other ECUs.
someipy also supports serialization and deserialization of SOME/IP payloads, which is a unique feature compared to other libraries.
someipy is still under development; therefore, it does not yet support all features of the SOME/IP and SOME/IP Service Discovery protocol specification.
someipy is based on the specification version of R22-11:
The library is currently developed and tested under Ubuntu 22.04 and Python 3.8.
someipy excels in scenarios where a full-scale Autosar (Adaptive or Classic) integration would be excessive:
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🧪 Develop Test Applications: Easily create test applications to stimulate the SOME/IP interfaces of your system under test. Whether running on a PC in a SIL environment or on an ECU, someipy allows you to efficiently send and receive SOME/IP events or utilize/provide SOME/IP services. Test data can be seamlessly generated or imported in Python, from sources such as .csv files or ROS bag files. Explore the example applications for more details.
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🔋 Prototype Sensor Integration: Quickly integrate new sensors into your project using SOME/IP, ideal for evaluating the sensor's potential impact without significant effort. Define the message/parameter layout in Python and create a server service instance in minutes. Check out the example application send_events_udp.py for a practical demonstration.
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🔬 Data Recording: Set up a SOME/IP recording application in just a few minutes and store data in your preferred format, such as ROS bags, .csv files, or databases. Simply dump the received data within your callback function. The example application receive_events_udp.py illustrates this process.
The package can be installed from PyPi.
pip3 install someipyIn the directory example_apps, examples including explanations, can be found for using the someipy library.
The library is still under development. The current major limitations and deviations from the protocol specifications are listed below.
- Only unicast services are supported.
- SOME/IP-TP is not supported.
- IPv6 endpoints are not supported.
- SOME/IP fields are not supported.
- Configuration and load balancing options in SOME/IP SD messages are not supported.
- Stop subscribe message of notifications is not supported
- The Initial Wait Phase and Repetition Phase of the Service Discovery specification are skipped. The Main Phase is directly entered, i.e. SD Offer Entries are immediately sent cyclically.