v2.0.0 Wellton

Special notes

Mesa 2.0 includes:
* an experimental pure python user interface/ visualization that is also jupyter compatible please see the visualization tutorial_
* several breaking changes that provide significant improvements to Mesa.

.. _visualization tutorial: https://mesa.readthedocs.io/en/latest/tutorials/visualization_tutorial.html
Breaking Changes:

• space: change coord_iter to return (content,(x,y)) instead of (content, x,y); this reduces known errors of scheduler to grid mismatch #1566, #1723
• space: change NetworkGrid get_neighbors to get_neighborhood; improves performance #1542
• space: raise exception when pos is out of bounds in Grid.get_neighborhood #1524
• space: remove deprecations (#1520, #1687, #1688):
  • find_empty(): convert this to move_to_empty()
  • num_agents: removed parameter from move_to_empty()
  • position_agent(): convert this to place_agent
  • neighbor_iter(): convert this to iter_neighborhood()
• batchrunner: remove deprecations #1627
  • class BatchRunner and class BatchRunnerMP: convert these to batch_run()
  • Please see this batch_run() example_ if you would like to see an an implementation.
• visualization: easier visualization creation #1693
  • UserSettableParameter(['number', 'slider','checkbox', 'choice', 'StaticText']): convert to NumberInput , Slider, CheckBox, Choice, StaticText
  • Please see this visualization example_ if you would like to see an implementation.

.. _batch_run() example: https://github.com/projectmesa/mesa-examples/blob/db2ec0383eb3b1868e91c828101e84cce97bbb63/examples/bank_reserves/batch_run.py#L188-L221
.. _visualization example: https://github.com/projectmesa/mesa-examples/blob/db2ec0383eb3b1868e91c828101e84cce97bbb63/examples/boltzmann_wealth_model/boltzmann_wealth_model/server.py#L25-L32.)

New Features:

• datacollector: can now handle data collection by agent type #1419, #1702
• time: allows for model level StageActivation #1709
• visualization: ChartModule can have dynamically named properties #1685
• visualization: improved stop server to end visualizations #1646
• experimental python front end option: integrated the initial prototype of the pure python front end option #1698, #1726

Improvements

• update HexGrid and create HexSingleGrid and HexMultiGrid #1581
• correct get_heading for toroidal space #1686
• update slider to start at 1FPS #1674
• update links to examples repo due to creation of mesa_examples #1636, #1637
• ** CI Improvements**
  • update Ruff #1724
  • remove Pipfile and Pipfile.lock #1692
  • enable Codespell in Jupyter #1695
  • improve regex for better build #1669, #1671
  • exclude notebooks form linter #1670
  • updated pip for zsh #1644
  • CLI quality of life improvements #1640
• Docs Improvements
  • update to PyData theme #1699
  • remove .rst to create simpler build #1363, #1624
  • use seaborn in tutorials #1718
  • fix types and errors in docs #1624, #1705, #1706, #1720
  • improve tutorials #1636, #1637, #1639, #1641, #1647, #1648, #1650, #1656, #1658, #1659, #1695, #1697,
  • add nbsphinx to adv_tutorial #1694
  • replace const chart for var chart in advanced tutorial #1679
• update LICENSE to 2023 #1683

v1.2.0 Taylor

Taylor release v1.2.0.

v1.1.1

This release fixes #1461 where custom user-specified portrayal images don't load in the visualization server.

Full Changelog: v1.1.0...v1.1.1