PyPI version Build Status Build status Coverage Status codecov PEP8

The CiS framework provides support for combining scientific models written in different programming languages. To combine two models, modelers add simple communications interfaces to the model code and provide simple declarative specification files that identify the models that should be run and the inputs and outputs those models expect.

The system uses the specification files to configure the communications channels and expose them to the models. The complexity of the particular communications system is managed by the framework, which performs communication setup, binds the communications to simple interfaces within the models, and manages execution of the models. The complexities of model registration and discovery, as well as the complexities of setup and management of the communications system are handled under-the-hood by the framework under direction of the model specification, freeing the domain scientist from implementing communications protocols or translating models to the same programming language.

Please refer to the package documentation for additional information about the package and directions for installing it.


This will be the last release of the Crops in Silico framework under the name cis_interface. Moving forward, the package will be refered to as yggdrasil. The new Github repository for yggdrasil can be found here and the new documentation can be found here. Future versions of the yggdrasil package be installed from PyPI via pip install yggdrasil-framework. We apologize for any inconvenince this change causes, but feel the new name better reflects the spirit of the project.