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FMI++ Python Interface




The FMI++ Python Interface


The Functional Mock-up Interface_ (FMI) specification intentionally provides only the most essential and fundamental functionalities in the form of a C interface. On the one hand, this increases flexibility in use and portability to virtually any platform. On the other hand, such a low-level approach implies several prerequisites a simulation tool has to fulfil in order to be able to utilize such an FMI component.

.. _Functional Mock-up Interface:

The FMI++ Python Interface_ is a Python wrapper for the FMI++ Library_, which intends to bridge the gap between the basic fuctionality provided by the FMI specification and the typical requirements of simulation tools. The FMI++ Library provides high-level functionalities that ease the handling and manipulation of FMUs, such as numerical integration, advanced event-handling or state predictions. This allows FMUs to be integrated more easily, e.g., into fixed time step or discrete event simulations.

.. _FMI++ Python Interface: .. _FMI++ Library:

This package provides a stand-alone version of the Python interface for the FMI++ Library_.

.. _FMI++ Library:


The FMI++ Python Interface provides several classes that allow to manipulate FMUs for ModelExchange and for Co-Simulation. An overview on how to use it can be found here_.

.. _here:

More extensive background information can be found in the documentation of the FMI++ Library_.

.. _FMI++ Library:

Installation on Windows

  • use pip to install the FMI++ Python Interface from the PyPI as pre-compiled binary package (Python wheel)::

    $ pip install fmipp --prefer-binary

--prefer-binary should guarantee that binary distributions (wheels) are chosen over source distributions for the installation. Alternatively --only-binary :all: can be used instead to force installing from binary distribution.

Installation on Linux (Ubuntu 20.04)

  • make sure to have installed the following prerequisites(e.g. via apt, see package names in brackets below):

    • python (python3) (recommended: version 3.7 or higher)
    • pip (python3-pip)
    • distutils (python3-setuptools)
    • GCC compiler toolchain (build-essential)
    • swig (swig)
    • SUNDIALS library (libsundials-dev)
    • Boost library (libboost-all-dev)
  • use pip to install the FMI++ Python Interface from the PyPI via source distribution::

    $ python3 -m pip install fmipp



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