gis: update four examples to use solara viz

[wang-boyu]

Partly addresses #154.

Update the following four gis examples to use the new solara visualization:

• agents_and_networks
• geo_schelling
• geo_schelling_points
• geo_sir

Update their dependency of mesa-geo to v0.9.0a0.

Also update the folder structure of the geo_sir model from

geo_sir
├── agents.py
├── model.py
├── app.py
├── ...

to

geo_sir
├── geo_sir
│   ├── __init__.py
│   ├── agents.py
│   └── model.py
├── app.py
├── ...

to be consistent with other gis examples.

[EwoutH]

Awesome work!

If others don’t get to it, I will review Monday.

[rht]

There is no "Start" button anymore. It is "▶".

[wang-boyu]

You're right! Fixed now.

[wang-boyu]

Also updated the agents_networks example model. Won't update any other examples in this PR.

[EwoutH]

I would do it the other way around, and keep everything in a gis/geo_sir.

[EwoutH]

Thanks for working on this, this looks really nice!

Also great that you cleaned some old files up.

Go ahead and merge!

[EwoutH]

Personally, I would highly prefer adoption this structure for all examples. It's by far the most straightforward and clearly arranged one.

geo_sir
├── agents.py
├── model.py
├── app.py

[wang-boyu]

I had some difficulties in using the flat folder structure. If model.py and agents.py are inside gis/geo_sir together with app.py, then solara run app.py gives the following errors:

    from .agents import PersonAgent
ImportError: attempted relative import with no known parent package

   from .agents import NeighbourhoodAgent, PersonAgent
ImportError: attempted relative import with no known parent package

I will then have to change all the imports from .agent to agents, for example:

# from
from .agents import NeighbourhoodAgent, PersonAgent

# to
from agents import NeighbourhoodAgent, PersonAgent

Then solara run app.py runs fine. However, tests cases will throw errors:

___________________________________________________ ERROR collecting test_gis_examples.py ___________________________________________________
ImportError while importing test module '/Users/boyu/GitHubProjects/mesa-examples/test_gis_examples.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/local/Cellar/python@3.12/3.12.7/Frameworks/Python.framework/Versions/3.12/lib/python3.12/importlib/__init__.py:90: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
test_gis_examples.py:30: in <module>
    @pytest.mark.parametrize("model_class", get_models("gis"))
test_gis_examples.py:17: in get_models
    module = importlib.import_module(module_name)
/usr/local/Cellar/python@3.12/3.12.7/Frameworks/Python.framework/Versions/3.12/lib/python3.12/importlib/__init__.py:90: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
gis/geo_sir/model.py:7: in <module>
    from agents import NeighbourhoodAgent, PersonAgent
E   ModuleNotFoundError: No module named 'agents'
========================================================== short test summary info ==========================================================
ERROR test_gis_examples.py
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

So I simply use the updated folder structure that works for both solara and tests.

[wang-boyu]

With the approvals I'll go ahead and merge this, so that users can have a working frontent for these examples. Thanks for looking into this @rht @EwoutH.

[EwoutH]

Awesome! I would be totally fine with you merging faster/earlier, if you feel that would speed up your development of these models.