Mesa allows users to quickly create agent-based models using built-in core components (such as spatial grids and agent schedulers) or customized implementations; visualize them using a browser-based interface; and analyze their results using Python's data analysis tools. Its goal is to be the Python-based alternative to NetLogo, Repast, or MASON.
Above: A Mesa implementation of the WolfSheep model, this can be displayed in browser windows or Jupyter.
FeaturesTo install our latest stable release, run:
pip install -U mesa
Starting with Mesa 3.0, we don't install all our dependencies anymore by default.
# You can customize the additional dependencies you need, if you want. Available are: pip install -U mesa[network,viz] # This is equivalent to our recommended dependencies: pip install -U mesa[rec] # To install all, including developer, dependencies: pip install -U mesa[all]
You can also use pip
to install the latest GitHub version:
pip install -U -e git+https://github.com/projectmesa/mesa@main#egg=mesa
Or any other (development) branch on this repo or your own fork:
pip install -U -e git+https://github.com/YOUR_FORK/mesa@YOUR_BRANCH#egg=mesaResources
For resources or help on using Mesa, check out the following:
You can run Mesa in a Docker container in a few ways.
If you are a Mesa developer, first install Docker Compose and then, in the folder containing the Mesa Git repository, you run:
$ docker compose up # If you want to make it run in the background, you instead run $ docker compose up -d
This runs the Schelling model, as an example.
With the docker-compose.yml file in this Git repository, the docker compose up
command does two important things:
If you are a model developer that wants to run Mesa on a model, you need to:
MODEL_DIR
variable in docker-compose.yml to point to the path of your modelThen, you just need to run docker compose up -d
to have it accessible from localhost:8765
.
Want to join the Mesa team or just curious about what is happening with Mesa? You can...
- Join our Matrix chat room in which questions, issues, and ideas can be (informally) discussed.
- Come to a monthly dev session (you can find dev session times, agendas and notes on Mesa discussions).
- Just check out the code on GitHub.
If you run into an issue, please file a ticket for us to discuss. If possible, follow up with a pull request.
If you would like to add a feature, please reach out via ticket or join a dev session (see Mesa discussions). A feature is most likely to be added if you build it!
Don't forget to checkout the Contributors guide.
Citing MesaTo cite Mesa in your publication, you can refer to our peer-reviewed article in the Journal of Open Source Software (JOSS):
Our CITATION.cff can be used to generate APA, BibTeX and other citation formats.
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